Merge commit 'v2.6.28-rc2' into x86/pci-ioapic-boot-irq-quirks

14 files changed, 4671 insertions, 73 deletions

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 0604f3faf04..8ee21030e9a 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -154,7 +154,6 @@ config USB_NET_AX8817X
 	  This driver creates an interface named "ethX", where X depends on
 	  what other networking devices you have in use.
 
-
 config USB_NET_CDCETHER
 	tristate "CDC Ethernet support (smart devices such as cable modems)"
 	depends on USB_USBNET
@@ -189,6 +188,14 @@ config USB_NET_DM9601
 	  This option adds support for Davicom DM9601 based USB 1.1
 	  10/100 Ethernet adapters.
 
+config USB_NET_SMSC95XX
+	tristate "SMSC LAN95XX based USB 2.0 10/100 ethernet devices"
+	depends on USB_USBNET
+	select CRC32
+	help
+	  This option adds support for SMSC LAN95XX based USB 2.0
+	  10/100 Ethernet adapters.
+
 config USB_NET_GL620A
 	tristate "GeneSys GL620USB-A based cables"
 	depends on USB_USBNET
@@ -327,5 +334,15 @@ config USB_NET_ZAURUS
 	  really need this non-conformant variant of CDC Ethernet (or in
 	  some cases CDC MDLM) protocol, not "g_ether".
 
+config USB_HSO
+	tristate "Option USB High Speed Mobile Devices"
+	depends on USB && RFKILL
+	default n
+	help
+	  Choose this option if you have an Option HSDPA/HSUPA card.
+	  These cards support downlink speeds of 7.2Mbps or greater.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called hso.
 
 endmenu
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index 595a539f838..88a87eeb376 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -6,9 +6,11 @@ obj-$(CONFIG_USB_CATC)		+= catc.o
 obj-$(CONFIG_USB_KAWETH)	+= kaweth.o
 obj-$(CONFIG_USB_PEGASUS)	+= pegasus.o
 obj-$(CONFIG_USB_RTL8150)	+= rtl8150.o
+obj-$(CONFIG_USB_HSO)		+= hso.o
 obj-$(CONFIG_USB_NET_AX8817X)	+= asix.o
 obj-$(CONFIG_USB_NET_CDCETHER)	+= cdc_ether.o
 obj-$(CONFIG_USB_NET_DM9601)	+= dm9601.o
+obj-$(CONFIG_USB_NET_SMSC95XX)	+= smsc95xx.o
 obj-$(CONFIG_USB_NET_GL620A)	+= gl620a.o
 obj-$(CONFIG_USB_NET_NET1080)	+= net1080.o
 obj-$(CONFIG_USB_NET_PLUSB)	+= plusb.o
@@ -18,6 +20,3 @@ obj-$(CONFIG_USB_NET_ZAURUS)	+= zaurus.o
 obj-$(CONFIG_USB_NET_MCS7830)	+= mcs7830.o
 obj-$(CONFIG_USB_USBNET)	+= usbnet.o
 
-ifeq ($(CONFIG_USB_DEBUG),y)
-EXTRA_CFLAGS += -DDEBUG
-endif
diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
index 22c17bbacb6..466a89e2444 100644
--- a/drivers/net/usb/catc.c
+++ b/drivers/net/usb/catc.c
@@ -456,7 +456,7 @@ static void catc_tx_timeout(struct net_device *netdev)
 {
 	struct catc *catc = netdev_priv(netdev);
 
-	warn("Transmit timed out.");
+	dev_warn(&netdev->dev, "Transmit timed out.\n");
 	usb_unlink_urb(catc->tx_urb);
 }
 
@@ -847,7 +847,8 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 			dbg("64k Memory\n");
 			break;
 		default:
-			warn("Couldn't detect memory size, assuming 32k");
+			dev_warn(&intf->dev,
+				 "Couldn't detect memory size, assuming 32k\n");
 		case 0x87654321:
 			catc_set_reg(catc, TxBufCount, 4);
 			catc_set_reg(catc, RxBufCount, 16);
@@ -953,7 +954,8 @@ static int __init catc_init(void)
 {
 	int result = usb_register(&catc_driver);
 	if (result == 0)
-		info(DRIVER_VERSION " " DRIVER_DESC);
+		printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
+		       DRIVER_DESC "\n");
 	return result;
 }
 
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index a934428a589..0e061dfea78 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -50,10 +50,18 @@ static int is_activesync(struct usb_interface_descriptor *desc)
 		&& desc->bInterfaceProtocol == 1;
 }
 
+static int is_wireless_rndis(struct usb_interface_descriptor *desc)
+{
+	return desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER
+		&& desc->bInterfaceSubClass == 1
+		&& desc->bInterfaceProtocol == 3;
+}
+
 #else
 
 #define is_rndis(desc)		0
 #define is_activesync(desc)	0
+#define is_wireless_rndis(desc)	0
 
 #endif
 
@@ -110,7 +118,8 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
 	 * of cdc-acm, it'll fail RNDIS requests cleanly.
 	 */
 	rndis = is_rndis(&intf->cur_altsetting->desc)
-		|| is_activesync(&intf->cur_altsetting->desc);
+		|| is_activesync(&intf->cur_altsetting->desc)
+		|| is_wireless_rndis(&intf->cur_altsetting->desc);
 
 	memset(info, 0, sizeof *info);
 	info->control = intf;
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
index f7319d32691..78df2be8a72 100644
--- a/drivers/net/usb/dm9601.c
+++ b/drivers/net/usb/dm9601.c
@@ -55,12 +55,28 @@
 
 static int dm_read(struct usbnet *dev, u8 reg, u16 length, void *data)
 {
+	void *buf;
+	int err = -ENOMEM;
+
 	devdbg(dev, "dm_read() reg=0x%02x length=%d", reg, length);
-	return usb_control_msg(dev->udev,
-			       usb_rcvctrlpipe(dev->udev, 0),
-			       DM_READ_REGS,
-			       USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-			       0, reg, data, length, USB_CTRL_SET_TIMEOUT);
+
+	buf = kmalloc(length, GFP_KERNEL);
+	if (!buf)
+		goto out;
+
+	err = usb_control_msg(dev->udev,
+			      usb_rcvctrlpipe(dev->udev, 0),
+			      DM_READ_REGS,
+			      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			      0, reg, buf, length, USB_CTRL_SET_TIMEOUT);
+	if (err == length)
+		memcpy(data, buf, length);
+	else if (err >= 0)
+		err = -EINVAL;
+	kfree(buf);
+
+ out:
+	return err;
 }
 
 static int dm_read_reg(struct usbnet *dev, u8 reg, u8 *value)
@@ -70,12 +86,28 @@ static int dm_read_reg(struct usbnet *dev, u8 reg, u8 *value)
 
 static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data)
 {
+	void *buf = NULL;
+	int err = -ENOMEM;
+
 	devdbg(dev, "dm_write() reg=0x%02x, length=%d", reg, length);
-	return usb_control_msg(dev->udev,
-			       usb_sndctrlpipe(dev->udev, 0),
-			       DM_WRITE_REGS,
-			       USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE,
-			       0, reg, data, length, USB_CTRL_SET_TIMEOUT);
+
+	if (data) {
+		buf = kmalloc(length, GFP_KERNEL);
+		if (!buf)
+			goto out;
+		memcpy(buf, data, length);
+	}
+
+	err = usb_control_msg(dev->udev,
+			      usb_sndctrlpipe(dev->udev, 0),
+			      DM_WRITE_REGS,
+			      USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE,
+			      0, reg, buf, length, USB_CTRL_SET_TIMEOUT);
+	kfree(buf);
+	if (err >= 0 && err < length)
+		err = -EINVAL;
+ out:
+	return err;
 }
 
 static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value)
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
new file mode 100644
index 00000000000..1164c52e2c0
--- /dev/null
+++ b/drivers/net/usb/hso.c
@@ -0,0 +1,2987 @@
+/******************************************************************************
+ *
+ * Driver for Option High Speed Mobile Devices.
+ *
+ *  Copyright (C) 2008 Option International
+ *  Copyright (C) 2007 Andrew Bird (Sphere Systems Ltd)
+ *  			<ajb@spheresystems.co.uk>
+ *  Copyright (C) 2008 Greg Kroah-Hartman <gregkh@suse.de>
+ *  Copyright (C) 2008 Novell, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ *  USA
+ *
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * Description of the device:
+ *
+ * Interface 0:	Contains the IP network interface on the bulk end points.
+ *		The multiplexed serial ports are using the interrupt and
+ *		control endpoints.
+ *		Interrupt contains a bitmap telling which multiplexed
+ *		serialport needs servicing.
+ *
+ * Interface 1:	Diagnostics port, uses bulk only, do not submit urbs until the
+ *		port is opened, as this have a huge impact on the network port
+ *		throughput.
+ *
+ * Interface 2:	Standard modem interface - circuit switched interface, should
+ *		not be used.
+ *
+ *****************************************************************************/
+
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/module.h>
+#include <linux/ethtool.h>
+#include <linux/usb.h>
+#include <linux/timer.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/kmod.h>
+#include <linux/rfkill.h>
+#include <linux/ip.h>
+#include <linux/uaccess.h>
+#include <linux/usb/cdc.h>
+#include <net/arp.h>
+#include <asm/byteorder.h>
+
+
+#define DRIVER_VERSION			"1.2"
+#define MOD_AUTHOR			"Option Wireless"
+#define MOD_DESCRIPTION			"USB High Speed Option driver"
+#define MOD_LICENSE			"GPL"
+
+#define HSO_MAX_NET_DEVICES		10
+#define HSO__MAX_MTU			2048
+#define DEFAULT_MTU			1500
+#define DEFAULT_MRU			1500
+
+#define CTRL_URB_RX_SIZE		1024
+#define CTRL_URB_TX_SIZE		64
+
+#define BULK_URB_RX_SIZE		4096
+#define BULK_URB_TX_SIZE		8192
+
+#define MUX_BULK_RX_BUF_SIZE		HSO__MAX_MTU
+#define MUX_BULK_TX_BUF_SIZE		HSO__MAX_MTU
+#define MUX_BULK_RX_BUF_COUNT		4
+#define USB_TYPE_OPTION_VENDOR		0x20
+
+/* These definitions are used with the struct hso_net flags element */
+/* - use *_bit operations on it. (bit indices not values.) */
+#define HSO_NET_RUNNING			0
+
+#define	HSO_NET_TX_TIMEOUT		(HZ*10)
+
+#define HSO_SERIAL_MAGIC		0x48534f31
+
+/* Number of ttys to handle */
+#define HSO_SERIAL_TTY_MINORS		256
+
+#define MAX_RX_URBS			2
+
+static inline struct hso_serial *get_serial_by_tty(struct tty_struct *tty)
+{
+	if (tty)
+		return tty->driver_data;
+	return NULL;
+}
+
+/*****************************************************************************/
+/* Debugging functions                                                       */
+/*****************************************************************************/
+#define D__(lvl_, fmt, arg...)				\
+	do {						\
+		printk(lvl_ "[%d:%s]: " fmt "\n",	\
+		       __LINE__, __func__, ## arg);	\
+	} while (0)
+
+#define D_(lvl, args...)				\
+	do {						\
+		if (lvl & debug)			\
+			D__(KERN_INFO, args);		\
+	} while (0)
+
+#define D1(args...)	D_(0x01, ##args)
+#define D2(args...)	D_(0x02, ##args)
+#define D3(args...)	D_(0x04, ##args)
+#define D4(args...)	D_(0x08, ##args)
+#define D5(args...)	D_(0x10, ##args)
+
+/*****************************************************************************/
+/* Enumerators                                                               */
+/*****************************************************************************/
+enum pkt_parse_state {
+	WAIT_IP,
+	WAIT_DATA,
+	WAIT_SYNC
+};
+
+/*****************************************************************************/
+/* Structs                                                                   */
+/*****************************************************************************/
+
+struct hso_shared_int {
+	struct usb_endpoint_descriptor *intr_endp;
+	void *shared_intr_buf;
+	struct urb *shared_intr_urb;
+	struct usb_device *usb;
+	int use_count;
+	int ref_count;
+	struct mutex shared_int_lock;
+};
+
+struct hso_net {
+	struct hso_device *parent;
+	struct net_device *net;
+	struct rfkill *rfkill;
+
+	struct usb_endpoint_descriptor *in_endp;
+	struct usb_endpoint_descriptor *out_endp;
+
+	struct urb *mux_bulk_rx_urb_pool[MUX_BULK_RX_BUF_COUNT];
+	struct urb *mux_bulk_tx_urb;
+	void *mux_bulk_rx_buf_pool[MUX_BULK_RX_BUF_COUNT];
+	void *mux_bulk_tx_buf;
+
+	struct sk_buff *skb_rx_buf;
+	struct sk_buff *skb_tx_buf;
+
+	enum pkt_parse_state rx_parse_state;
+	spinlock_t net_lock;
+
+	unsigned short rx_buf_size;
+	unsigned short rx_buf_missing;
+	struct iphdr rx_ip_hdr;
+
+	unsigned long flags;
+};
+
+enum rx_ctrl_state{
+	RX_IDLE,
+	RX_SENT,
+	RX_PENDING
+};
+
+struct hso_serial {
+	struct hso_device *parent;
+	int magic;
+	u8 minor;
+
+	struct hso_shared_int *shared_int;
+
+	/* rx/tx urb could be either a bulk urb or a control urb depending
+	   on which serial port it is used on. */
+	struct urb *rx_urb[MAX_RX_URBS];
+	u8 num_rx_urbs;
+	u8 *rx_data[MAX_RX_URBS];
+	u16 rx_data_length;	/* should contain allocated length */
+
+	struct urb *tx_urb;
+	u8 *tx_data;
+	u8 *tx_buffer;
+	u16 tx_data_length;	/* should contain allocated length */
+	u16 tx_data_count;
+	u16 tx_buffer_count;
+	struct usb_ctrlrequest ctrl_req_tx;
+	struct usb_ctrlrequest ctrl_req_rx;
+
+	struct usb_endpoint_descriptor *in_endp;
+	struct usb_endpoint_descriptor *out_endp;
+
+	enum rx_ctrl_state rx_state;
+	u8 rts_state;
+	u8 dtr_state;
+	unsigned tx_urb_used:1;
+
+	/* from usb_serial_port */
+	struct tty_struct *tty;
+	int open_count;
+	spinlock_t serial_lock;
+
+	int (*write_data) (struct hso_serial *serial);
+	/* Hacks required to get flow control
+	 * working on the serial receive buffers
+	 * so as not to drop characters on the floor.
+	 */
+	int  curr_rx_urb_idx;
+	u16  curr_rx_urb_offset;
+	u8   rx_urb_filled[MAX_RX_URBS];
+	struct tasklet_struct unthrottle_tasklet;
+	struct work_struct    retry_unthrottle_workqueue;
+};
+
+struct hso_device {
+	union {
+		struct hso_serial *dev_serial;
+		struct hso_net *dev_net;
+	} port_data;
+
+	u32 port_spec;
+
+	u8 is_active;
+	u8 usb_gone;
+	struct work_struct async_get_intf;
+	struct work_struct async_put_intf;
+
+	struct usb_device *usb;
+	struct usb_interface *interface;
+
+	struct device *dev;
+	struct kref ref;
+	struct mutex mutex;
+};
+
+/* Type of interface */
+#define HSO_INTF_MASK		0xFF00
+#define	HSO_INTF_MUX		0x0100
+#define	HSO_INTF_BULK   	0x0200
+
+/* Type of port */
+#define HSO_PORT_MASK		0xFF
+#define HSO_PORT_NO_PORT	0x0
+#define	HSO_PORT_CONTROL	0x1
+#define	HSO_PORT_APP		0x2
+#define	HSO_PORT_GPS		0x3
+#define	HSO_PORT_PCSC		0x4
+#define	HSO_PORT_APP2		0x5
+#define HSO_PORT_GPS_CONTROL	0x6
+#define HSO_PORT_MSD		0x7
+#define HSO_PORT_VOICE		0x8
+#define HSO_PORT_DIAG2		0x9
+#define	HSO_PORT_DIAG		0x10
+#define	HSO_PORT_MODEM		0x11
+#define	HSO_PORT_NETWORK	0x12
+
+/* Additional device info */
+#define HSO_INFO_MASK		0xFF000000
+#define HSO_INFO_CRC_BUG	0x01000000
+
+/*****************************************************************************/
+/* Prototypes                                                                */
+/*****************************************************************************/
+/* Serial driver functions */
+static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file,
+			       unsigned int set, unsigned int clear);
+static void ctrl_callback(struct urb *urb);
+static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial);
+static void hso_kick_transmit(struct hso_serial *serial);
+/* Helper functions */
+static int hso_mux_submit_intr_urb(struct hso_shared_int *mux_int,
+				   struct usb_device *usb, gfp_t gfp);
+static void log_usb_status(int status, const char *function);
+static struct usb_endpoint_descriptor *hso_get_ep(struct usb_interface *intf,
+						  int type, int dir);
+static int hso_get_mux_ports(struct usb_interface *intf, unsigned char *ports);
+static void hso_free_interface(struct usb_interface *intf);
+static int hso_start_serial_device(struct hso_device *hso_dev, gfp_t flags);
+static int hso_stop_serial_device(struct hso_device *hso_dev);
+static int hso_start_net_device(struct hso_device *hso_dev);
+static void hso_free_shared_int(struct hso_shared_int *shared_int);
+static int hso_stop_net_device(struct hso_device *hso_dev);
+static void hso_serial_ref_free(struct kref *ref);
+static void hso_std_serial_read_bulk_callback(struct urb *urb);
+static int hso_mux_serial_read(struct hso_serial *serial);
+static void async_get_intf(struct work_struct *data);
+static void async_put_intf(struct work_struct *data);
+static int hso_put_activity(struct hso_device *hso_dev);
+static int hso_get_activity(struct hso_device *hso_dev);
+
+/*****************************************************************************/
+/* Helping functions                                                         */
+/*****************************************************************************/
+
+/* #define DEBUG */
+
+static inline struct hso_net *dev2net(struct hso_device *hso_dev)
+{
+	return hso_dev->port_data.dev_net;
+}
+
+static inline struct hso_serial *dev2ser(struct hso_device *hso_dev)
+{
+	return hso_dev->port_data.dev_serial;
+}
+
+/* Debugging functions */
+#ifdef DEBUG
+static void dbg_dump(int line_count, const char *func_name, unsigned char *buf,
+		     unsigned int len)
+{
+	static char name[255];
+
+	sprintf(name, "hso[%d:%s]", line_count, func_name);
+	print_hex_dump_bytes(name, DUMP_PREFIX_NONE, buf, len);
+}
+
+#define DUMP(buf_, len_)	\
+	dbg_dump(__LINE__, __func__, buf_, len_)
+
+#define DUMP1(buf_, len_)			\
+	do {					\
+		if (0x01 & debug)		\
+			DUMP(buf_, len_);	\
+	} while (0)
+#else
+#define DUMP(buf_, len_)
+#define DUMP1(buf_, len_)
+#endif
+
+/* module parameters */
+static int debug;
+static int tty_major;
+static int disable_net;
+
+/* driver info */
+static const char driver_name[] = "hso";
+static const char tty_filename[] = "ttyHS";
+static const char *version = __FILE__ ": " DRIVER_VERSION " " MOD_AUTHOR;
+/* the usb driver itself (registered in hso_init) */
+static struct usb_driver hso_driver;
+/* serial structures */
+static struct tty_driver *tty_drv;
+static struct hso_device *serial_table[HSO_SERIAL_TTY_MINORS];
+static struct hso_device *network_table[HSO_MAX_NET_DEVICES];
+static spinlock_t serial_table_lock;
+static struct ktermios *hso_serial_termios[HSO_SERIAL_TTY_MINORS];
+static struct ktermios *hso_serial_termios_locked[HSO_SERIAL_TTY_MINORS];
+
+static const s32 default_port_spec[] = {
+	HSO_INTF_MUX | HSO_PORT_NETWORK,
+	HSO_INTF_BULK | HSO_PORT_DIAG,
+	HSO_INTF_BULK | HSO_PORT_MODEM,
+	0
+};
+
+static const s32 icon321_port_spec[] = {
+	HSO_INTF_MUX | HSO_PORT_NETWORK,
+	HSO_INTF_BULK | HSO_PORT_DIAG2,
+	HSO_INTF_BULK | HSO_PORT_MODEM,
+	HSO_INTF_BULK | HSO_PORT_DIAG,
+	0
+};
+
+#define default_port_device(vendor, product)	\
+	USB_DEVICE(vendor, product),	\
+		.driver_info = (kernel_ulong_t)default_port_spec
+
+#define icon321_port_device(vendor, product)	\
+	USB_DEVICE(vendor, product),	\
+		.driver_info = (kernel_ulong_t)icon321_port_spec
+
+/* list of devices we support */
+static const struct usb_device_id hso_ids[] = {
+	{default_port_device(0x0af0, 0x6711)},
+	{default_port_device(0x0af0, 0x6731)},
+	{default_port_device(0x0af0, 0x6751)},
+	{default_port_device(0x0af0, 0x6771)},
+	{default_port_device(0x0af0, 0x6791)},
+	{default_port_device(0x0af0, 0x6811)},
+	{default_port_device(0x0af0, 0x6911)},
+	{default_port_device(0x0af0, 0x6951)},
+	{default_port_device(0x0af0, 0x6971)},
+	{default_port_device(0x0af0, 0x7011)},
+	{default_port_device(0x0af0, 0x7031)},
+	{default_port_device(0x0af0, 0x7051)},
+	{default_port_device(0x0af0, 0x7071)},
+	{default_port_device(0x0af0, 0x7111)},
+	{default_port_device(0x0af0, 0x7211)},
+	{default_port_device(0x0af0, 0x7251)},
+	{default_port_device(0x0af0, 0x7271)},
+	{default_port_device(0x0af0, 0x7311)},
+	{default_port_device(0x0af0, 0xc031)},	/* Icon-Edge */
+	{icon321_port_device(0x0af0, 0xd013)},	/* Module HSxPA */
+	{icon321_port_device(0x0af0, 0xd031)},	/* Icon-321 */
+	{icon321_port_device(0x0af0, 0xd033)},	/* Icon-322 */
+	{USB_DEVICE(0x0af0, 0x7301)},		/* GE40x */
+	{USB_DEVICE(0x0af0, 0x7361)},		/* GE40x */
+	{USB_DEVICE(0x0af0, 0x7401)},		/* GI 0401 */
+	{USB_DEVICE(0x0af0, 0x7501)},		/* GTM 382 */
+	{USB_DEVICE(0x0af0, 0x7601)},		/* GE40x */
+	{}
+};
+MODULE_DEVICE_TABLE(usb, hso_ids);
+
+/* Sysfs attribute */
+static ssize_t hso_sysfs_show_porttype(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buf)
+{
+	struct hso_device *hso_dev = dev->driver_data;
+	char *port_name;
+
+	if (!hso_dev)
+		return 0;
+
+	switch (hso_dev->port_spec & HSO_PORT_MASK) {
+	case HSO_PORT_CONTROL:
+		port_name = "Control";
+		break;
+	case HSO_PORT_APP:
+		port_name = "Application";
+		break;
+	case HSO_PORT_APP2:
+		port_name = "Application2";
+		break;
+	case HSO_PORT_GPS:
+		port_name = "GPS";
+		break;
+	case HSO_PORT_GPS_CONTROL:
+		port_name = "GPS Control";
+		break;
+	case HSO_PORT_PCSC:
+		port_name = "PCSC";
+		break;
+	case HSO_PORT_DIAG:
+		port_name = "Diagnostic";
+		break;
+	case HSO_PORT_DIAG2:
+		port_name = "Diagnostic2";
+		break;
+	case HSO_PORT_MODEM:
+		port_name = "Modem";
+		break;
+	case HSO_PORT_NETWORK:
+		port_name = "Network";
+		break;
+	default:
+		port_name = "Unknown";
+		break;
+	}
+
+	return sprintf(buf, "%s\n", port_name);
+}
+static DEVICE_ATTR(hsotype, S_IRUGO, hso_sysfs_show_porttype, NULL);
+
+static int hso_urb_to_index(struct hso_serial *serial, struct urb *urb)
+{
+	int idx;
+
+	for (idx = 0; idx < serial->num_rx_urbs; idx++)
+		if (serial->rx_urb[idx] == urb)
+			return idx;
+	dev_err(serial->parent->dev, "hso_urb_to_index failed\n");
+	return -1;
+}
+
+/* converts mux value to a port spec value */
+static u32 hso_mux_to_port(int mux)
+{
+	u32 result;
+
+	switch (mux) {
+	case 0x1:
+		result = HSO_PORT_CONTROL;
+		break;
+	case 0x2:
+		result = HSO_PORT_APP;
+		break;
+	case 0x4:
+		result = HSO_PORT_PCSC;
+		break;
+	case 0x8:
+		result = HSO_PORT_GPS;
+		break;
+	case 0x10:
+		result = HSO_PORT_APP2;
+		break;
+	default:
+		result = HSO_PORT_NO_PORT;
+	}
+	return result;
+}
+
+/* converts port spec value to a mux value */
+static u32 hso_port_to_mux(int port)
+{
+	u32 result;
+
+	switch (port & HSO_PORT_MASK) {
+	case HSO_PORT_CONTROL:
+		result = 0x0;
+		break;
+	case HSO_PORT_APP:
+		result = 0x1;
+		break;
+	case HSO_PORT_PCSC:
+		result = 0x2;
+		break;
+	case HSO_PORT_GPS:
+		result = 0x3;
+		break;
+	case HSO_PORT_APP2:
+		result = 0x4;
+		break;
+	default:
+		result = 0x0;
+	}
+	return result;
+}
+
+static struct hso_serial *get_serial_by_shared_int_and_type(
+					struct hso_shared_int *shared_int,
+					int mux)
+{
+	int i, port;
+
+	port = hso_mux_to_port(mux);
+
+	for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
+		if (serial_table[i]
+		    && (dev2ser(serial_table[i])->shared_int == shared_int)
+		    && ((serial_table[i]->port_spec & HSO_PORT_MASK) == port)) {
+			return dev2ser(serial_table[i]);
+		}
+	}
+
+	return NULL;
+}
+
+static struct hso_serial *get_serial_by_index(unsigned index)
+{
+	struct hso_serial *serial = NULL;
+	unsigned long flags;
+
+	spin_lock_irqsave(&serial_table_lock, flags);
+	if (serial_table[index])
+		serial = dev2ser(serial_table[index]);
+	spin_unlock_irqrestore(&serial_table_lock, flags);
+
+	return serial;
+}
+
+static int get_free_serial_index(void)
+{
+	int index;
+	unsigned long flags;
+
+	spin_lock_irqsave(&serial_table_lock, flags);
+	for (index = 0; index < HSO_SERIAL_TTY_MINORS; index++) {
+		if (serial_table[index] == NULL) {
+			spin_unlock_irqrestore(&serial_table_lock, flags);
+			return index;
+		}
+	}
+	spin_unlock_irqrestore(&serial_table_lock, flags);
+
+	printk(KERN_ERR "%s: no free serial devices in table\n", __func__);
+	return -1;
+}
+
+static void set_serial_by_index(unsigned index, struct hso_serial *serial)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&serial_table_lock, flags);
+	if (serial)
+		serial_table[index] = serial->parent;
+	else
+		serial_table[index] = NULL;
+	spin_unlock_irqrestore(&serial_table_lock, flags);
+}
+
+/* log a meaningful explanation of an USB status */
+static void log_usb_status(int status, const char *function)
+{
+	char *explanation;
+
+	switch (status) {
+	case -ENODEV:
+		explanation = "no device";
+		break;
+	case -ENOENT:
+		explanation = "endpoint not enabled";
+		break;
+	case -EPIPE:
+		explanation = "endpoint stalled";
+		break;
+	case -ENOSPC:
+		explanation = "not enough bandwidth";
+		break;
+	case -ESHUTDOWN:
+		explanation = "device disabled";
+		break;
+	case -EHOSTUNREACH:
+		explanation = "device suspended";
+		break;
+	case -EINVAL:
+	case -EAGAIN:
+	case -EFBIG:
+	case -EMSGSIZE:
+		explanation = "internal error";
+		break;
+	default:
+		explanation = "unknown status";
+		break;
+	}
+	D1("%s: received USB status - %s (%d)", function, explanation, status);
+}
+
+/* Network interface functions */
+
+/* called when net interface is brought up by ifconfig */
+static int hso_net_open(struct net_device *net)
+{
+	struct hso_net *odev = netdev_priv(net);
+	unsigned long flags = 0;
+
+	if (!odev) {
+		dev_err(&net->dev, "No net device !\n");
+		return -ENODEV;
+	}
+
+	odev->skb_tx_buf = NULL;
+
+	/* setup environment */
+	spin_lock_irqsave(&odev->net_lock, flags);
+	odev->rx_parse_state = WAIT_IP;
+	odev->rx_buf_size = 0;
+	odev->rx_buf_missing = sizeof(struct iphdr);
+	spin_unlock_irqrestore(&odev->net_lock, flags);
+
+	hso_start_net_device(odev->parent);
+
+	/* We are up and running. */
+	set_bit(HSO_NET_RUNNING, &odev->flags);
+
+	/* Tell the kernel we are ready to start receiving from it */
+	netif_start_queue(net);
+
+	return 0;
+}
+
+/* called when interface is brought down by ifconfig */
+static int hso_net_close(struct net_device *net)
+{
+	struct hso_net *odev = netdev_priv(net);
+
+	/* we don't need the queue anymore */
+	netif_stop_queue(net);
+	/* no longer running */
+	clear_bit(HSO_NET_RUNNING, &odev->flags);
+
+	hso_stop_net_device(odev->parent);
+
+	/* done */
+	return 0;
+}
+
+/* USB tells is xmit done, we should start the netqueue again */
+static void write_bulk_callback(struct urb *urb)
+{
+	struct hso_net *odev = urb->context;
+	int status = urb->status;
+
+	/* Sanity check */
+	if (!odev || !test_bit(HSO_NET_RUNNING, &odev->flags)) {
+		dev_err(&urb->dev->dev, "%s: device not running\n", __func__);
+		return;
+	}
+
+	/* Do we still have a valid kernel network device? */
+	if (!netif_device_present(odev->net)) {
+		dev_err(&urb->dev->dev, "%s: net device not present\n",
+			__func__);
+		return;
+	}
+
+	/* log status, but don't act on it, we don't need to resubmit anything
+	 * anyhow */
+	if (status)
+		log_usb_status(status, __func__);
+
+	hso_put_activity(odev->parent);
+
+	/* Tell the network interface we are ready for another frame */
+	netif_wake_queue(odev->net);
+}
+
+/* called by kernel when we need to transmit a packet */
+static int hso_net_start_xmit(struct sk_buff *skb, struct net_device *net)
+{
+	struct hso_net *odev = netdev_priv(net);
+	int result;
+
+	/* Tell the kernel, "No more frames 'til we are done with this one." */
+	netif_stop_queue(net);
+	if (hso_get_activity(odev->parent) == -EAGAIN) {
+		odev->skb_tx_buf = skb;
+		return 0;
+	}
+
+	/* log if asked */
+	DUMP1(skb->data, skb->len);
+	/* Copy it from kernel memory to OUR memory */
+	memcpy(odev->mux_bulk_tx_buf, skb->data, skb->len);
+	D1("len: %d/%d", skb->len, MUX_BULK_TX_BUF_SIZE);
+
+	/* Fill in the URB for shipping it out. */
+	usb_fill_bulk_urb(odev->mux_bulk_tx_urb,
+			  odev->parent->usb,
+			  usb_sndbulkpipe(odev->parent->usb,
+					  odev->out_endp->
+					  bEndpointAddress & 0x7F),
+			  odev->mux_bulk_tx_buf, skb->len, write_bulk_callback,
+			  odev);
+
+	/* Deal with the Zero Length packet problem, I hope */
+	odev->mux_bulk_tx_urb->transfer_flags |= URB_ZERO_PACKET;
+
+	/* Send the URB on its merry way. */
+	result = usb_submit_urb(odev->mux_bulk_tx_urb, GFP_ATOMIC);
+	if (result) {
+		dev_warn(&odev->parent->interface->dev,
+			"failed mux_bulk_tx_urb %d", result);
+		net->stats.tx_errors++;
+		netif_start_queue(net);
+	} else {
+		net->stats.tx_packets++;
+		net->stats.tx_bytes += skb->len;
+		/* And tell the kernel when the last transmit started. */
+		net->trans_start = jiffies;
+	}
+	dev_kfree_skb(skb);
+	/* we're done */
+	return result;
+}
+
+static void hso_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
+{
+	struct hso_net *odev = netdev_priv(net);
+
+	strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN);
+	strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
+	usb_make_path(odev->parent->usb, info->bus_info, sizeof info->bus_info);
+}
+
+static struct ethtool_ops ops = {
+	.get_drvinfo = hso_get_drvinfo,
+	.get_link = ethtool_op_get_link
+};
+
+/* called when a packet did not ack after watchdogtimeout */
+static void hso_net_tx_timeout(struct net_device *net)
+{
+	struct hso_net *odev = netdev_priv(net);
+
+	if (!odev)
+		return;
+
+	/* Tell syslog we are hosed. */
+	dev_warn(&net->dev, "Tx timed out.\n");
+
+	/* Tear the waiting frame off the list */
+	if (odev->mux_bulk_tx_urb
+	    && (odev->mux_bulk_tx_urb->status == -EINPROGRESS))
+		usb_unlink_urb(odev->mux_bulk_tx_urb);
+
+	/* Update statistics */
+	net->stats.tx_errors++;
+}
+
+/* make a real packet from the received USB buffer */
+static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt,
+			unsigned int count, unsigned char is_eop)
+{
+	unsigned short temp_bytes;
+	unsigned short buffer_offset = 0;
+	unsigned short frame_len;
+	unsigned char *tmp_rx_buf;
+
+	/* log if needed */
+	D1("Rx %d bytes", count);
+	DUMP(ip_pkt, min(128, (int)count));
+
+	while (count) {
+		switch (odev->rx_parse_state) {
+		case WAIT_IP:
+			/* waiting for IP header. */
+			/* wanted bytes - size of ip header */
+			temp_bytes =
+			    (count <
+			     odev->rx_buf_missing) ? count : odev->
+			    rx_buf_missing;
+
+			memcpy(((unsigned char *)(&odev->rx_ip_hdr)) +
+			       odev->rx_buf_size, ip_pkt + buffer_offset,
+			       temp_bytes);
+
+			odev->rx_buf_size += temp_bytes;
+			buffer_offset += temp_bytes;
+			odev->rx_buf_missing -= temp_bytes;
+			count -= temp_bytes;
+
+			if (!odev->rx_buf_missing) {
+				/* header is complete allocate an sk_buffer and
+				 * continue to WAIT_DATA */
+				frame_len = ntohs(odev->rx_ip_hdr.tot_len);
+
+				if ((frame_len > DEFAULT_MRU) ||
+				    (frame_len < sizeof(struct iphdr))) {
+					dev_err(&odev->net->dev,
+						"Invalid frame (%d) length\n",
+						frame_len);
+					odev->rx_parse_state = WAIT_SYNC;
+					continue;
+				}
+				/* Allocate an sk_buff */
+				odev->skb_rx_buf = dev_alloc_skb(frame_len);
+				if (!odev->skb_rx_buf) {
+					/* We got no receive buffer. */
+					D1("could not allocate memory");
+					odev->rx_parse_state = WAIT_SYNC;
+					return;
+				}
+				/* Here's where it came from */
+				odev->skb_rx_buf->dev = odev->net;
+
+				/* Copy what we got so far. make room for iphdr
+				 * after tail. */
+				tmp_rx_buf =
+				    skb_put(odev->skb_rx_buf,
+					    sizeof(struct iphdr));
+				memcpy(tmp_rx_buf, (char *)&(odev->rx_ip_hdr),
+				       sizeof(struct iphdr));
+
+				/* ETH_HLEN */
+				odev->rx_buf_size = sizeof(struct iphdr);
+
+				/* Filip actually use .tot_len */
+				odev->rx_buf_missing =
+				    frame_len - sizeof(struct iphdr);
+				odev->rx_parse_state = WAIT_DATA;
+			}
+			break;
+
+		case WAIT_DATA:
+			temp_bytes = (count < odev->rx_buf_missing)
+					? count : odev->rx_buf_missing;
+
+			/* Copy the rest of the bytes that are left in the
+			 * buffer into the waiting sk_buf. */
+			/* Make room for temp_bytes after tail. */
+			tmp_rx_buf = skb_put(odev->skb_rx_buf, temp_bytes);
+			memcpy(tmp_rx_buf, ip_pkt + buffer_offset, temp_bytes);
+
+			odev->rx_buf_missing -= temp_bytes;
+			count -= temp_bytes;
+			buffer_offset += temp_bytes;
+			odev->rx_buf_size += temp_bytes;
+			if (!odev->rx_buf_missing) {
+				/* Packet is complete. Inject into stack. */
+				/* We have IP packet here */
+				odev->skb_rx_buf->protocol =
+						__constant_htons(ETH_P_IP);
+				/* don't check it */
+				odev->skb_rx_buf->ip_summed =
+					CHECKSUM_UNNECESSARY;
+
+				skb_reset_mac_header(odev->skb_rx_buf);
+
+				/* Ship it off to the kernel */
+				netif_rx(odev->skb_rx_buf);
+				/* No longer our buffer. */
+				odev->skb_rx_buf = NULL;
+
+				/* update out statistics */
+				odev->net->stats.rx_packets++;
+
+				odev->net->stats.rx_bytes += odev->rx_buf_size;
+
+				odev->rx_buf_size = 0;
+				odev->rx_buf_missing = sizeof(struct iphdr);
+				odev->rx_parse_state = WAIT_IP;
+			}
+			break;
+
+		case WAIT_SYNC:
+			D1(" W_S");
+			count = 0;
+			break;
+		default:
+			D1(" ");
+			count--;
+			break;
+		}
+	}
+
+	/* Recovery mechanism for WAIT_SYNC state. */
+	if (is_eop) {
+		if (odev->rx_parse_state == WAIT_SYNC) {
+			odev->rx_parse_state = WAIT_IP;
+			odev->rx_buf_size = 0;
+			odev->rx_buf_missing = sizeof(struct iphdr);
+		}
+	}
+}
+
+/* Moving data from usb to kernel (in interrupt state) */
+static void read_bulk_callback(struct urb *urb)
+{
+	struct hso_net *odev = urb->context;
+	struct net_device *net;
+	int result;
+	int status = urb->status;
+
+	/* is al ok?  (Filip: Who's Al ?) */
+	if (status) {
+		log_usb_status(status, __func__);
+		return;
+	}
+
+	/* Sanity check */
+	if (!odev || !test_bit(HSO_NET_RUNNING, &odev->flags)) {
+		D1("BULK IN callback but driver is not active!");
+		return;
+	}
+	usb_mark_last_busy(urb->dev);
+
+	net = odev->net;
+
+	if (!netif_device_present(net)) {
+		/* Somebody killed our network interface... */
+		return;
+	}
+
+	if (odev->parent->port_spec & HSO_INFO_CRC_BUG) {
+		u32 rest;
+		u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF };
+		rest = urb->actual_length % odev->in_endp->wMaxPacketSize;
+		if (((rest == 5) || (rest == 6))
+		    && !memcmp(((u8 *) urb->transfer_buffer) +
+			       urb->actual_length - 4, crc_check, 4)) {
+			urb->actual_length -= 4;
+		}
+	}
+
+	/* do we even have a packet? */
+	if (urb->actual_length) {
+		/* Handle the IP stream, add header and push it onto network
+		 * stack if the packet is complete. */
+		spin_lock(&odev->net_lock);
+		packetizeRx(odev, urb->transfer_buffer, urb->actual_length,
+			    (urb->transfer_buffer_length >
+			     urb->actual_length) ? 1 : 0);
+		spin_unlock(&odev->net_lock);
+	}
+
+	/* We are done with this URB, resubmit it. Prep the USB to wait for
+	 * another frame. Reuse same as received. */
+	usb_fill_bulk_urb(urb,
+			  odev->parent->usb,
+			  usb_rcvbulkpipe(odev->parent->usb,
+					  odev->in_endp->
+					  bEndpointAddress & 0x7F),
+			  urb->transfer_buffer, MUX_BULK_RX_BUF_SIZE,
+			  read_bulk_callback, odev);
+
+	/* Give this to the USB subsystem so it can tell us when more data
+	 * arrives. */
+	result = usb_submit_urb(urb, GFP_ATOMIC);
+	if (result)
+		dev_warn(&odev->parent->interface->dev,
+			 "%s failed submit mux_bulk_rx_urb %d", __func__,
+			 result);
+}
+
+/* Serial driver functions */
+
+static void _hso_serial_set_termios(struct tty_struct *tty,
+				    struct ktermios *old)
+{
+	struct hso_serial *serial = get_serial_by_tty(tty);
+	struct ktermios *termios;
+
+	if ((!tty) || (!tty->termios) || (!serial)) {
+		printk(KERN_ERR "%s: no tty structures", __func__);
+		return;
+	}
+
+	D4("port %d", serial->minor);
+
+	/*
+	 * The default requirements for this device are:
+	 */
+	termios = tty->termios;
+	termios->c_iflag &=
+		~(IGNBRK	/* disable ignore break */
+		| BRKINT	/* disable break causes interrupt */
+		| PARMRK	/* disable mark parity errors */
+		| ISTRIP	/* disable clear high bit of input characters */
+		| INLCR		/* disable translate NL to CR */
+		| IGNCR		/* disable ignore CR */
+		| ICRNL		/* disable translate CR to NL */
+		| IXON);	/* disable enable XON/XOFF flow control */
+
+	/* disable postprocess output characters */
+	termios->c_oflag &= ~OPOST;
+
+	termios->c_lflag &=
+		~(ECHO		/* disable echo input characters */
+		| ECHONL	/* disable echo new line */
+		| ICANON	/* disable erase, kill, werase, and rprnt
+				   special characters */
+		| ISIG		/* disable interrupt, quit, and suspend special
+				   characters */
+		| IEXTEN);	/* disable non-POSIX special characters */
+
+	termios->c_cflag &=
+		~(CSIZE		/* no size */
+		| PARENB	/* disable parity bit */
+		| CBAUD		/* clear current baud rate */
+		| CBAUDEX);	/* clear current buad rate */
+
+	termios->c_cflag |= CS8;	/* character size 8 bits */
+
+	/* baud rate 115200 */
+	tty_encode_baud_rate(serial->tty, 115200, 115200);
+
+	/*
+	 * Force low_latency on; otherwise the pushes are scheduled;
+	 * this is bad as it opens up the possibility of dropping bytes
+	 * on the floor.  We don't want to drop bytes on the floor. :)
+	 */
+	serial->tty->low_latency = 1;
+	return;
+}
+
+static void hso_resubmit_rx_bulk_urb(struct hso_serial *serial, struct urb *urb)
+{
+	int result;
+#ifdef CONFIG_HSO_AUTOPM
+	usb_mark_last_busy(urb->dev);
+#endif
+	/* We are done with this URB, resubmit it. Prep the USB to wait for
+	 * another frame */
+	usb_fill_bulk_urb(urb, serial->parent->usb,
+			  usb_rcvbulkpipe(serial->parent->usb,
+					  serial->in_endp->
+					  bEndpointAddress & 0x7F),
+			  urb->transfer_buffer, serial->rx_data_length,
+			  hso_std_serial_read_bulk_callback, serial);
+	/* Give this to the USB subsystem so it can tell us when more data
+	 * arrives. */
+	result = usb_submit_urb(urb, GFP_ATOMIC);
+	if (result) {
+		dev_err(&urb->dev->dev, "%s failed submit serial rx_urb %d\n",
+			__func__, result);
+	}
+}
+
+
+
+
+static void put_rxbuf_data_and_resubmit_bulk_urb(struct hso_serial *serial)
+{
+	int count;
+	struct urb *curr_urb;
+
+	while (serial->rx_urb_filled[serial->curr_rx_urb_idx]) {
+		curr_urb = serial->rx_urb[serial->curr_rx_urb_idx];
+		count = put_rxbuf_data(curr_urb, serial);
+		if (count == -1)
+			return;
+		if (count == 0) {
+			serial->curr_rx_urb_idx++;
+			if (serial->curr_rx_urb_idx >= serial->num_rx_urbs)
+				serial->curr_rx_urb_idx = 0;
+			hso_resubmit_rx_bulk_urb(serial, curr_urb);
+		}
+	}
+}
+
+static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial)
+{
+	int count = 0;
+	struct urb *urb;
+
+	urb = serial->rx_urb[0];
+	if (serial->open_count > 0) {
+		count = put_rxbuf_data(urb, serial);
+		if (count == -1)
+			return;
+	}
+	/* Re issue a read as long as we receive data. */
+
+	if (count == 0 && ((urb->actual_length != 0) ||
+			   (serial->rx_state == RX_PENDING))) {
+		serial->rx_state = RX_SENT;
+		hso_mux_serial_read(serial);
+	} else
+		serial->rx_state = RX_IDLE;
+}
+
+
+/* read callback for Diag and CS port */
+static void hso_std_serial_read_bulk_callback(struct urb *urb)
+{
+	struct hso_serial *serial = urb->context;
+	int status = urb->status;
+
+	/* sanity check */
+	if (!serial) {
+		D1("serial == NULL");
+		return;
+	} else if (status) {
+		log_usb_status(status, __func__);
+		return;
+	}
+
+	D4("\n--- Got serial_read_bulk callback %02x ---", status);
+	D1("Actual length = %d\n", urb->actual_length);
+	DUMP1(urb->transfer_buffer, urb->actual_length);
+
+	/* Anyone listening? */
+	if (serial->open_count == 0)
+		return;
+
+	if (status == 0) {
+		if (serial->parent->port_spec & HSO_INFO_CRC_BUG) {
+			u32 rest;
+			u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF };
+			rest =
+			    urb->actual_length %
+			    serial->in_endp->wMaxPacketSize;
+			if (((rest == 5) || (rest == 6))
+			    && !memcmp(((u8 *) urb->transfer_buffer) +
+				       urb->actual_length - 4, crc_check, 4)) {
+				urb->actual_length -= 4;
+			}
+		}
+		/* Valid data, handle RX data */
+		spin_lock(&serial->serial_lock);
+		serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 1;
+		put_rxbuf_data_and_resubmit_bulk_urb(serial);
+		spin_unlock(&serial->serial_lock);
+	} else if (status == -ENOENT || status == -ECONNRESET) {
+		/* Unlinked - check for throttled port. */
+		D2("Port %d, successfully unlinked urb", serial->minor);
+		spin_lock(&serial->serial_lock);
+		serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 0;
+		hso_resubmit_rx_bulk_urb(serial, urb);
+		spin_unlock(&serial->serial_lock);
+	} else {
+		D2("Port %d, status = %d for read urb", serial->minor, status);
+		return;
+	}
+}
+
+/*
+ * This needs to be a tasklet otherwise we will
+ * end up recursively calling this function.
+ */
+void hso_unthrottle_tasklet(struct hso_serial *serial)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&serial->serial_lock, flags);
+	if ((serial->parent->port_spec & HSO_INTF_MUX))
+		put_rxbuf_data_and_resubmit_ctrl_urb(serial);
+	else
+		put_rxbuf_data_and_resubmit_bulk_urb(serial);
+	spin_unlock_irqrestore(&serial->serial_lock, flags);
+}
+
+static	void hso_unthrottle(struct tty_struct *tty)
+{
+	struct hso_serial *serial = get_serial_by_tty(tty);
+
+	tasklet_hi_schedule(&serial->unthrottle_tasklet);
+}
+
+void hso_unthrottle_workfunc(struct work_struct *work)
+{
+	struct hso_serial *serial =
+	    container_of(work, struct hso_serial,
+			 retry_unthrottle_workqueue);
+	hso_unthrottle_tasklet(serial);
+}
+
+/* open the requested serial port */
+static int hso_serial_open(struct tty_struct *tty, struct file *filp)
+{
+	struct hso_serial *serial = get_serial_by_index(tty->index);
+	int result;
+
+	/* sanity check */
+	if (serial == NULL || serial->magic != HSO_SERIAL_MAGIC) {
+		tty->driver_data = NULL;
+		D1("Failed to open port");
+		return -ENODEV;
+	}
+
+	mutex_lock(&serial->parent->mutex);
+	result = usb_autopm_get_interface(serial->parent->interface);
+	if (result < 0)
+		goto err_out;
+
+	D1("Opening %d", serial->minor);
+	kref_get(&serial->parent->ref);
+
+	/* setup */
+	tty->driver_data = serial;
+	serial->tty = tty;
+
+	/* check for port already opened, if not set the termios */
+	serial->open_count++;
+	if (serial->open_count == 1) {
+		tty->low_latency = 1;
+		serial->rx_state = RX_IDLE;
+		/* Force default termio settings */
+		_hso_serial_set_termios(tty, NULL);
+		tasklet_init(&serial->unthrottle_tasklet,
+			     (void (*)(unsigned long))hso_unthrottle_tasklet,
+			     (unsigned long)serial);
+		INIT_WORK(&serial->retry_unthrottle_workqueue,
+			  hso_unthrottle_workfunc);
+		result = hso_start_serial_device(serial->parent, GFP_KERNEL);
+		if (result) {
+			hso_stop_serial_device(serial->parent);
+			serial->open_count--;
+			kref_put(&serial->parent->ref, hso_serial_ref_free);
+		}
+	} else {
+		D1("Port was already open");
+	}
+
+	usb_autopm_put_interface(serial->parent->interface);
+
+	/* done */
+	if (result)
+		hso_serial_tiocmset(tty, NULL, TIOCM_RTS | TIOCM_DTR, 0);
+err_out:
+	mutex_unlock(&serial->parent->mutex);
+	return result;
+}
+
+/* close the requested serial port */
+static void hso_serial_close(struct tty_struct *tty, struct file *filp)
+{
+	struct hso_serial *serial = tty->driver_data;
+	u8 usb_gone;
+
+	D1("Closing serial port");
+
+	mutex_lock(&serial->parent->mutex);
+	usb_gone = serial->parent->usb_gone;
+
+	if (!usb_gone)
+		usb_autopm_get_interface(serial->parent->interface);
+
+	/* reset the rts and dtr */
+	/* do the actual close */
+	serial->open_count--;
+	kref_put(&serial->parent->ref, hso_serial_ref_free);
+	if (serial->open_count <= 0) {
+		serial->open_count = 0;
+		if (serial->tty) {
+			serial->tty->driver_data = NULL;
+			serial->tty = NULL;
+		}
+		if (!usb_gone)
+			hso_stop_serial_device(serial->parent);
+		tasklet_kill(&serial->unthrottle_tasklet);
+		cancel_work_sync(&serial->retry_unthrottle_workqueue);
+	}
+
+	if (!usb_gone)
+		usb_autopm_put_interface(serial->parent->interface);
+
+	mutex_unlock(&serial->parent->mutex);
+}
+
+/* close the requested serial port */
+static int hso_serial_write(struct tty_struct *tty, const unsigned char *buf,
+			    int count)
+{
+	struct hso_serial *serial = get_serial_by_tty(tty);
+	int space, tx_bytes;
+	unsigned long flags;
+
+	/* sanity check */
+	if (serial == NULL) {
+		printk(KERN_ERR "%s: serial is NULL\n", __func__);
+		return -ENODEV;
+	}
+
+	spin_lock_irqsave(&serial->serial_lock, flags);
+
+	space = serial->tx_data_length - serial->tx_buffer_count;
+	tx_bytes = (count < space) ? count : space;
+
+	if (!tx_bytes)
+		goto out;
+
+	memcpy(serial->tx_buffer + serial->tx_buffer_count, buf, tx_bytes);
+	serial->tx_buffer_count += tx_bytes;
+
+out:
+	spin_unlock_irqrestore(&serial->serial_lock, flags);
+
+	hso_kick_transmit(serial);
+	/* done */
+	return tx_bytes;
+}
+
+/* how much room is there for writing */
+static int hso_serial_write_room(struct tty_struct *tty)
+{
+	struct hso_serial *serial = get_serial_by_tty(tty);
+	int room;
+	unsigned long flags;
+
+	spin_lock_irqsave(&serial->serial_lock, flags);
+	room = serial->tx_data_length - serial->tx_buffer_count;
+	spin_unlock_irqrestore(&serial->serial_lock, flags);
+
+	/* return free room */
+	return room;
+}
+
+/* setup the term */
+static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
+{
+	struct hso_serial *serial = get_serial_by_tty(tty);
+	unsigned long flags;
+
+	if (old)
+		D5("Termios called with: cflags new[%d] - old[%d]",
+		   tty->termios->c_cflag, old->c_cflag);
+
+	/* the actual setup */
+	spin_lock_irqsave(&serial->serial_lock, flags);
+	if (serial->open_count)
+		_hso_serial_set_termios(tty, old);
+	else
+		tty->termios = old;
+	spin_unlock_irqrestore(&serial->serial_lock, flags);
+
+	/* done */
+	return;
+}
+
+/* how many characters in the buffer */
+static int hso_serial_chars_in_buffer(struct tty_struct *tty)
+{
+	struct hso_serial *serial = get_serial_by_tty(tty);
+	int chars;
+	unsigned long flags;
+
+	/* sanity check */
+	if (serial == NULL)
+		return 0;
+
+	spin_lock_irqsave(&serial->serial_lock, flags);
+	chars = serial->tx_buffer_count;
+	spin_unlock_irqrestore(&serial->serial_lock, flags);
+
+	return chars;
+}
+
+static int hso_serial_tiocmget(struct tty_struct *tty, struct file *file)
+{
+	unsigned int value;
+	struct hso_serial *serial = get_serial_by_tty(tty);
+	unsigned long flags;
+
+	/* sanity check */
+	if (!serial) {
+		D1("no tty structures");
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&serial->serial_lock, flags);
+	value = ((serial->rts_state) ? TIOCM_RTS : 0) |
+	    ((serial->dtr_state) ? TIOCM_DTR : 0);
+	spin_unlock_irqrestore(&serial->serial_lock, flags);
+
+	return value;
+}
+
+static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file,
+			       unsigned int set, unsigned int clear)
+{
+	int val = 0;
+	unsigned long flags;
+	int if_num;
+	struct hso_serial *serial = get_serial_by_tty(tty);
+
+	/* sanity check */
+	if (!serial) {
+		D1("no tty structures");
+		return -EINVAL;
+	}
+	if_num = serial->parent->interface->altsetting->desc.bInterfaceNumber;
+
+	spin_lock_irqsave(&serial->serial_lock, flags);
+	if (set & TIOCM_RTS)
+		serial->rts_state = 1;
+	if (set & TIOCM_DTR)
+		serial->dtr_state = 1;
+
+	if (clear & TIOCM_RTS)
+		serial->rts_state = 0;
+	if (clear & TIOCM_DTR)
+		serial->dtr_state = 0;
+
+	if (serial->dtr_state)
+		val |= 0x01;
+	if (serial->rts_state)
+		val |= 0x02;
+
+	spin_unlock_irqrestore(&serial->serial_lock, flags);
+
+	return usb_control_msg(serial->parent->usb,
+			       usb_rcvctrlpipe(serial->parent->usb, 0), 0x22,
+			       0x21, val, if_num, NULL, 0,
+			       USB_CTRL_SET_TIMEOUT);
+}
+
+/* starts a transmit */
+static void hso_kick_transmit(struct hso_serial *serial)
+{
+	u8 *temp;
+	unsigned long flags;
+	int res;
+
+	spin_lock_irqsave(&serial->serial_lock, flags);
+	if (!serial->tx_buffer_count)
+		goto out;
+
+	if (serial->tx_urb_used)
+		goto out;
+
+	/* Wakeup USB interface if necessary */
+	if (hso_get_activity(serial->parent) == -EAGAIN)
+		goto out;
+
+	/* Switch pointers around to avoid memcpy */
+	temp = serial->tx_buffer;
+	serial->tx_buffer = serial->tx_data;
+	serial->tx_data = temp;
+	serial->tx_data_count = serial->tx_buffer_count;
+	serial->tx_buffer_count = 0;
+
+	/* If temp is set, it means we switched buffers */
+	if (temp && serial->write_data) {
+		res = serial->write_data(serial);
+		if (res >= 0)
+			serial->tx_urb_used = 1;
+	}
+out:
+	spin_unlock_irqrestore(&serial->serial_lock, flags);
+}
+
+/* make a request (for reading and writing data to muxed serial port) */
+static int mux_device_request(struct hso_serial *serial, u8 type, u16 port,
+			      struct urb *ctrl_urb,
+			      struct usb_ctrlrequest *ctrl_req,
+			      u8 *ctrl_urb_data, u32 size)
+{
+	int result;
+	int pipe;
+
+	/* Sanity check */
+	if (!serial || !ctrl_urb || !ctrl_req) {
+		printk(KERN_ERR "%s: Wrong arguments\n", __func__);
+		return -EINVAL;
+	}
+
+	/* initialize */
+	ctrl_req->wValue = 0;
+	ctrl_req->wIndex = hso_port_to_mux(port);
+	ctrl_req->wLength = size;
+
+	if (type == USB_CDC_GET_ENCAPSULATED_RESPONSE) {
+		/* Reading command */
+		ctrl_req->bRequestType = USB_DIR_IN |
+					 USB_TYPE_OPTION_VENDOR |
+					 USB_RECIP_INTERFACE;
+		ctrl_req->bRequest = USB_CDC_GET_ENCAPSULATED_RESPONSE;
+		pipe = usb_rcvctrlpipe(serial->parent->usb, 0);
+	} else {
+		/* Writing command */
+		ctrl_req->bRequestType = USB_DIR_OUT |
+					 USB_TYPE_OPTION_VENDOR |
+					 USB_RECIP_INTERFACE;
+		ctrl_req->bRequest = USB_CDC_SEND_ENCAPSULATED_COMMAND;
+		pipe = usb_sndctrlpipe(serial->parent->usb, 0);
+	}
+	/* syslog */
+	D2("%s command (%02x) len: %d, port: %d",
+	   type == USB_CDC_GET_ENCAPSULATED_RESPONSE ? "Read" : "Write",
+	   ctrl_req->bRequestType, ctrl_req->wLength, port);
+
+	/* Load ctrl urb */
+	ctrl_urb->transfer_flags = 0;
+	usb_fill_control_urb(ctrl_urb,
+			     serial->parent->usb,
+			     pipe,
+			     (u8 *) ctrl_req,
+			     ctrl_urb_data, size, ctrl_callback, serial);
+	/* Send it on merry way */
+	result = usb_submit_urb(ctrl_urb, GFP_ATOMIC);
+	if (result) {
+		dev_err(&ctrl_urb->dev->dev,
+			"%s failed submit ctrl_urb %d type %d", __func__,
+			result, type);
+		return result;
+	}
+
+	/* done */
+	return size;
+}
+
+/* called by intr_callback when read occurs */
+static int hso_mux_serial_read(struct hso_serial *serial)
+{
+	if (!serial)
+		return -EINVAL;
+
+	/* clean data */
+	memset(serial->rx_data[0], 0, CTRL_URB_RX_SIZE);
+	/* make the request */
+
+	if (serial->num_rx_urbs != 1) {
+		dev_err(&serial->parent->interface->dev,
+			"ERROR: mux'd reads with multiple buffers "
+			"not possible\n");
+		return 0;
+	}
+	return mux_device_request(serial,
+				  USB_CDC_GET_ENCAPSULATED_RESPONSE,
+				  serial->parent->port_spec & HSO_PORT_MASK,
+				  serial->rx_urb[0],
+				  &serial->ctrl_req_rx,
+				  serial->rx_data[0], serial->rx_data_length);
+}
+
+/* used for muxed serial port callback (muxed serial read) */
+static void intr_callback(struct urb *urb)
+{
+	struct hso_shared_int *shared_int = urb->context;
+	struct hso_serial *serial;
+	unsigned char *port_req;
+	int status = urb->status;
+	int i;
+
+	usb_mark_last_busy(urb->dev);
+
+	/* sanity check */
+	if (!shared_int)
+		return;
+
+	/* status check */
+	if (status) {
+		log_usb_status(status, __func__);
+		return;
+	}
+	D4("\n--- Got intr callback 0x%02X ---", status);
+
+	/* what request? */
+	port_req = urb->transfer_buffer;
+	D4(" port_req = 0x%.2X\n", *port_req);
+	/* loop over all muxed ports to find the one sending this */
+	for (i = 0; i < 8; i++) {
+		/* max 8 channels on MUX */
+		if (*port_req & (1 << i)) {
+			serial = get_serial_by_shared_int_and_type(shared_int,
+								   (1 << i));
+			if (serial != NULL) {
+				D1("Pending read interrupt on port %d\n", i);
+				spin_lock(&serial->serial_lock);
+				if (serial->rx_state == RX_IDLE) {
+					/* Setup and send a ctrl req read on
+					 * port i */
+				if (!serial->rx_urb_filled[0]) {
+						serial->rx_state = RX_SENT;
+						hso_mux_serial_read(serial);
+					} else
+						serial->rx_state = RX_PENDING;
+
+				} else {
+					D1("Already pending a read on "
+					   "port %d\n", i);
+				}
+				spin_unlock(&serial->serial_lock);
+			}
+		}
+	}
+	/* Resubmit interrupt urb */
+	hso_mux_submit_intr_urb(shared_int, urb->dev, GFP_ATOMIC);
+}
+
+/* called for writing to muxed serial port */
+static int hso_mux_serial_write_data(struct hso_serial *serial)
+{
+	if (NULL == serial)
+		return -EINVAL;
+
+	return mux_device_request(serial,
+				  USB_CDC_SEND_ENCAPSULATED_COMMAND,
+				  serial->parent->port_spec & HSO_PORT_MASK,
+				  serial->tx_urb,
+				  &serial->ctrl_req_tx,
+				  serial->tx_data, serial->tx_data_count);
+}
+
+/* write callback for Diag and CS port */
+static void hso_std_serial_write_bulk_callback(struct urb *urb)
+{
+	struct hso_serial *serial = urb->context;
+	int status = urb->status;
+
+	/* sanity check */
+	if (!serial) {
+		D1("serial == NULL");
+		return;
+	}
+
+	spin_lock(&serial->serial_lock);
+	serial->tx_urb_used = 0;
+	spin_unlock(&serial->serial_lock);
+	if (status) {
+		log_usb_status(status, __func__);
+		return;
+	}
+	hso_put_activity(serial->parent);
+	if (serial->tty)
+		tty_wakeup(serial->tty);
+	hso_kick_transmit(serial);
+
+	D1(" ");
+	return;
+}
+
+/* called for writing diag or CS serial port */
+static int hso_std_serial_write_data(struct hso_serial *serial)
+{
+	int count = serial->tx_data_count;
+	int result;
+
+	usb_fill_bulk_urb(serial->tx_urb,
+			  serial->parent->usb,
+			  usb_sndbulkpipe(serial->parent->usb,
+					  serial->out_endp->
+					  bEndpointAddress & 0x7F),
+			  serial->tx_data, serial->tx_data_count,
+			  hso_std_serial_write_bulk_callback, serial);
+
+	result = usb_submit_urb(serial->tx_urb, GFP_ATOMIC);
+	if (result) {
+		dev_warn(&serial->parent->usb->dev,
+			 "Failed to submit urb - res %d\n", result);
+		return result;
+	}
+
+	return count;
+}
+
+/* callback after read or write on muxed serial port */
+static void ctrl_callback(struct urb *urb)
+{
+	struct hso_serial *serial = urb->context;
+	struct usb_ctrlrequest *req;
+	int status = urb->status;
+
+	/* sanity check */
+	if (!serial)
+		return;
+
+	spin_lock(&serial->serial_lock);
+	serial->tx_urb_used = 0;
+	spin_unlock(&serial->serial_lock);
+	if (status) {
+		log_usb_status(status, __func__);
+		return;
+	}
+
+	/* what request? */
+	req = (struct usb_ctrlrequest *)(urb->setup_packet);
+	D4("\n--- Got muxed ctrl callback 0x%02X ---", status);
+	D4("Actual length of urb = %d\n", urb->actual_length);
+	DUMP1(urb->transfer_buffer, urb->actual_length);
+
+	if (req->bRequestType ==
+	    (USB_DIR_IN | USB_TYPE_OPTION_VENDOR | USB_RECIP_INTERFACE)) {
+		/* response to a read command */
+		serial->rx_urb_filled[0] = 1;
+		spin_lock(&serial->serial_lock);
+		put_rxbuf_data_and_resubmit_ctrl_urb(serial);
+		spin_unlock(&serial->serial_lock);
+	} else {
+		hso_put_activity(serial->parent);
+		if (serial->tty)
+			tty_wakeup(serial->tty);
+		/* response to a write command */
+		hso_kick_transmit(serial);
+	}
+}
+
+/* handle RX data for serial port */
+static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial)
+{
+	struct tty_struct *tty = serial->tty;
+	int write_length_remaining = 0;
+	int curr_write_len;
+	/* Sanity check */
+	if (urb == NULL || serial == NULL) {
+		D1("serial = NULL");
+		return -2;
+	}
+
+	/* Push data to tty */
+	if (tty) {
+		write_length_remaining = urb->actual_length -
+			serial->curr_rx_urb_offset;
+		D1("data to push to tty");
+		while (write_length_remaining) {
+			if (test_bit(TTY_THROTTLED, &tty->flags))
+				return -1;
+			curr_write_len =  tty_insert_flip_string
+				(tty, urb->transfer_buffer +
+				 serial->curr_rx_urb_offset,
+				 write_length_remaining);
+			serial->curr_rx_urb_offset += curr_write_len;
+			write_length_remaining -= curr_write_len;
+			tty_flip_buffer_push(tty);
+		}
+	}
+	if (write_length_remaining == 0) {
+		serial->curr_rx_urb_offset = 0;
+		serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 0;
+	}
+	return write_length_remaining;
+}
+
+
+/* Base driver functions */
+
+static void hso_log_port(struct hso_device *hso_dev)
+{
+	char *port_type;
+	char port_dev[20];
+
+	switch (hso_dev->port_spec & HSO_PORT_MASK) {
+	case HSO_PORT_CONTROL:
+		port_type = "Control";
+		break;
+	case HSO_PORT_APP:
+		port_type = "Application";
+		break;
+	case HSO_PORT_GPS:
+		port_type = "GPS";
+		break;
+	case HSO_PORT_GPS_CONTROL:
+		port_type = "GPS control";
+		break;
+	case HSO_PORT_APP2:
+		port_type = "Application2";
+		break;
+	case HSO_PORT_PCSC:
+		port_type = "PCSC";
+		break;
+	case HSO_PORT_DIAG:
+		port_type = "Diagnostic";
+		break;
+	case HSO_PORT_DIAG2:
+		port_type = "Diagnostic2";
+		break;
+	case HSO_PORT_MODEM:
+		port_type = "Modem";
+		break;
+	case HSO_PORT_NETWORK:
+		port_type = "Network";
+		break;
+	default:
+		port_type = "Unknown";
+		break;
+	}
+	if ((hso_dev->port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) {
+		sprintf(port_dev, "%s", dev2net(hso_dev)->net->name);
+	} else
+		sprintf(port_dev, "/dev/%s%d", tty_filename,
+			dev2ser(hso_dev)->minor);
+
+	dev_dbg(&hso_dev->interface->dev, "HSO: Found %s port %s\n",
+		port_type, port_dev);
+}
+
+static int hso_start_net_device(struct hso_device *hso_dev)
+{
+	int i, result = 0;
+	struct hso_net *hso_net = dev2net(hso_dev);
+
+	if (!hso_net)
+		return -ENODEV;
+
+	/* send URBs for all read buffers */
+	for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
+
+		/* Prep a receive URB */
+		usb_fill_bulk_urb(hso_net->mux_bulk_rx_urb_pool[i],
+				  hso_dev->usb,
+				  usb_rcvbulkpipe(hso_dev->usb,
+						  hso_net->in_endp->
+						  bEndpointAddress & 0x7F),
+				  hso_net->mux_bulk_rx_buf_pool[i],
+				  MUX_BULK_RX_BUF_SIZE, read_bulk_callback,
+				  hso_net);
+
+		/* Put it out there so the device can send us stuff */
+		result = usb_submit_urb(hso_net->mux_bulk_rx_urb_pool[i],
+					GFP_NOIO);
+		if (result)
+			dev_warn(&hso_dev->usb->dev,
+				"%s failed mux_bulk_rx_urb[%d] %d\n", __func__,
+				i, result);
+	}
+
+	return result;
+}
+
+static int hso_stop_net_device(struct hso_device *hso_dev)
+{
+	int i;
+	struct hso_net *hso_net = dev2net(hso_dev);
+
+	if (!hso_net)
+		return -ENODEV;
+
+	for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
+		if (hso_net->mux_bulk_rx_urb_pool[i])
+			usb_kill_urb(hso_net->mux_bulk_rx_urb_pool[i]);
+
+	}
+	if (hso_net->mux_bulk_tx_urb)
+		usb_kill_urb(hso_net->mux_bulk_tx_urb);
+
+	return 0;
+}
+
+static int hso_start_serial_device(struct hso_device *hso_dev, gfp_t flags)
+{
+	int i, result = 0;
+	struct hso_serial *serial = dev2ser(hso_dev);
+
+	if (!serial)
+		return -ENODEV;
+
+	/* If it is not the MUX port fill in and submit a bulk urb (already
+	 * allocated in hso_serial_start) */
+	if (!(serial->parent->port_spec & HSO_INTF_MUX)) {
+		for (i = 0; i < serial->num_rx_urbs; i++) {
+			usb_fill_bulk_urb(serial->rx_urb[i],
+					  serial->parent->usb,
+					  usb_rcvbulkpipe(serial->parent->usb,
+							  serial->in_endp->
+							  bEndpointAddress &
+							  0x7F),
+					  serial->rx_data[i],
+					  serial->rx_data_length,
+					  hso_std_serial_read_bulk_callback,
+					  serial);
+			result = usb_submit_urb(serial->rx_urb[i], flags);
+			if (result) {
+				dev_warn(&serial->parent->usb->dev,
+					 "Failed to submit urb - res %d\n",
+					 result);
+				break;
+			}
+		}
+	} else {
+		mutex_lock(&serial->shared_int->shared_int_lock);
+		if (!serial->shared_int->use_count) {
+			result =
+			    hso_mux_submit_intr_urb(serial->shared_int,
+						    hso_dev->usb, flags);
+		}
+		serial->shared_int->use_count++;
+		mutex_unlock(&serial->shared_int->shared_int_lock);
+	}
+
+	return result;
+}
+
+static int hso_stop_serial_device(struct hso_device *hso_dev)
+{
+	int i;
+	struct hso_serial *serial = dev2ser(hso_dev);
+
+	if (!serial)
+		return -ENODEV;
+
+	for (i = 0; i < serial->num_rx_urbs; i++) {
+		if (serial->rx_urb[i]) {
+				usb_kill_urb(serial->rx_urb[i]);
+				serial->rx_urb_filled[i] = 0;
+		}
+	}
+	serial->curr_rx_urb_idx = 0;
+	serial->curr_rx_urb_offset = 0;
+
+	if (serial->tx_urb)
+		usb_kill_urb(serial->tx_urb);
+
+	if (serial->shared_int) {
+		mutex_lock(&serial->shared_int->shared_int_lock);
+		if (serial->shared_int->use_count &&
+		    (--serial->shared_int->use_count == 0)) {
+			struct urb *urb;
+
+			urb = serial->shared_int->shared_intr_urb;
+			if (urb)
+				usb_kill_urb(urb);
+		}
+		mutex_unlock(&serial->shared_int->shared_int_lock);
+	}
+
+	return 0;
+}
+
+static void hso_serial_common_free(struct hso_serial *serial)
+{
+	int i;
+
+	if (serial->parent->dev)
+		device_remove_file(serial->parent->dev, &dev_attr_hsotype);
+
+	tty_unregister_device(tty_drv, serial->minor);
+
+	for (i = 0; i < serial->num_rx_urbs; i++) {
+		/* unlink and free RX URB */
+		usb_free_urb(serial->rx_urb[i]);
+		/* free the RX buffer */
+		kfree(serial->rx_data[i]);
+	}
+
+	/* unlink and free TX URB */
+	usb_free_urb(serial->tx_urb);
+	kfree(serial->tx_data);
+}
+
+static int hso_serial_common_create(struct hso_serial *serial, int num_urbs,
+				    int rx_size, int tx_size)
+{
+	struct device *dev;
+	int minor;
+	int i;
+
+	minor = get_free_serial_index();
+	if (minor < 0)
+		goto exit;
+
+	/* register our minor number */
+	serial->parent->dev = tty_register_device(tty_drv, minor,
+					&serial->parent->interface->dev);
+	dev = serial->parent->dev;
+	dev->driver_data = serial->parent;
+	i = device_create_file(dev, &dev_attr_hsotype);
+
+	/* fill in specific data for later use */
+	serial->minor = minor;
+	serial->magic = HSO_SERIAL_MAGIC;
+	spin_lock_init(&serial->serial_lock);
+	serial->num_rx_urbs = num_urbs;
+
+	/* RX, allocate urb and initialize */
+
+	/* prepare our RX buffer */
+	serial->rx_data_length = rx_size;
+	for (i = 0; i < serial->num_rx_urbs; i++) {
+		serial->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
+		if (!serial->rx_urb[i]) {
+			dev_err(dev, "Could not allocate urb?\n");
+			goto exit;
+		}
+		serial->rx_urb[i]->transfer_buffer = NULL;
+		serial->rx_urb[i]->transfer_buffer_length = 0;
+		serial->rx_data[i] = kzalloc(serial->rx_data_length,
+					     GFP_KERNEL);
+		if (!serial->rx_data[i]) {
+			dev_err(dev, "%s - Out of memory\n", __func__);
+			goto exit;
+		}
+	}
+
+	/* TX, allocate urb and initialize */
+	serial->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!serial->tx_urb) {
+		dev_err(dev, "Could not allocate urb?\n");
+		goto exit;
+	}
+	serial->tx_urb->transfer_buffer = NULL;
+	serial->tx_urb->transfer_buffer_length = 0;
+	/* prepare our TX buffer */
+	serial->tx_data_count = 0;
+	serial->tx_buffer_count = 0;
+	serial->tx_data_length = tx_size;
+	serial->tx_data = kzalloc(serial->tx_data_length, GFP_KERNEL);
+	if (!serial->tx_data) {
+		dev_err(dev, "%s - Out of memory", __func__);
+		goto exit;
+	}
+	serial->tx_buffer = kzalloc(serial->tx_data_length, GFP_KERNEL);
+	if (!serial->tx_buffer) {
+		dev_err(dev, "%s - Out of memory", __func__);
+		goto exit;
+	}
+
+	return 0;
+exit:
+	hso_serial_common_free(serial);
+	return -1;
+}
+
+/* Frees a general hso device */
+static void hso_free_device(struct hso_device *hso_dev)
+{
+	kfree(hso_dev);
+}
+
+/* Creates a general hso device */
+static struct hso_device *hso_create_device(struct usb_interface *intf,
+					    int port_spec)
+{
+	struct hso_device *hso_dev;
+
+	hso_dev = kzalloc(sizeof(*hso_dev), GFP_ATOMIC);
+	if (!hso_dev)
+		return NULL;
+
+	hso_dev->port_spec = port_spec;
+	hso_dev->usb = interface_to_usbdev(intf);
+	hso_dev->interface = intf;
+	kref_init(&hso_dev->ref);
+	mutex_init(&hso_dev->mutex);
+
+	INIT_WORK(&hso_dev->async_get_intf, async_get_intf);
+	INIT_WORK(&hso_dev->async_put_intf, async_put_intf);
+
+	return hso_dev;
+}
+
+/* Removes a network device in the network device table */
+static int remove_net_device(struct hso_device *hso_dev)
+{
+	int i;
+
+	for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
+		if (network_table[i] == hso_dev) {
+			network_table[i] = NULL;
+			break;
+		}
+	}
+	if (i == HSO_MAX_NET_DEVICES)
+		return -1;
+	return 0;
+}
+
+/* Frees our network device */
+static void hso_free_net_device(struct hso_device *hso_dev)
+{
+	int i;
+	struct hso_net *hso_net = dev2net(hso_dev);
+
+	if (!hso_net)
+		return;
+
+	/* start freeing */
+	for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
+		usb_free_urb(hso_net->mux_bulk_rx_urb_pool[i]);
+		kfree(hso_net->mux_bulk_rx_buf_pool[i]);
+	}
+	usb_free_urb(hso_net->mux_bulk_tx_urb);
+	kfree(hso_net->mux_bulk_tx_buf);
+
+	remove_net_device(hso_net->parent);
+
+	if (hso_net->net) {
+		unregister_netdev(hso_net->net);
+		free_netdev(hso_net->net);
+	}
+
+	hso_free_device(hso_dev);
+}
+
+/* initialize the network interface */
+static void hso_net_init(struct net_device *net)
+{
+	struct hso_net *hso_net = netdev_priv(net);
+
+	D1("sizeof hso_net is %d", (int)sizeof(*hso_net));
+
+	/* fill in the other fields */
+	net->open = hso_net_open;
+	net->stop = hso_net_close;
+	net->hard_start_xmit = hso_net_start_xmit;
+	net->tx_timeout = hso_net_tx_timeout;
+	net->watchdog_timeo = HSO_NET_TX_TIMEOUT;
+	net->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
+	net->type = ARPHRD_NONE;
+	net->mtu = DEFAULT_MTU - 14;
+	net->tx_queue_len = 10;
+	SET_ETHTOOL_OPS(net, &ops);
+
+	/* and initialize the semaphore */
+	spin_lock_init(&hso_net->net_lock);
+}
+
+/* Adds a network device in the network device table */
+static int add_net_device(struct hso_device *hso_dev)
+{
+	int i;
+
+	for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
+		if (network_table[i] == NULL) {
+			network_table[i] = hso_dev;
+			break;
+		}
+	}
+	if (i == HSO_MAX_NET_DEVICES)
+		return -1;
+	return 0;
+}
+
+static int hso_radio_toggle(void *data, enum rfkill_state state)
+{
+	struct hso_device *hso_dev = data;
+	int enabled = (state == RFKILL_STATE_ON);
+	int rv;
+
+	mutex_lock(&hso_dev->mutex);
+	if (hso_dev->usb_gone)
+		rv = 0;
+	else
+		rv = usb_control_msg(hso_dev->usb, usb_rcvctrlpipe(hso_dev->usb, 0),
+				       enabled ? 0x82 : 0x81, 0x40, 0, 0, NULL, 0,
+				       USB_CTRL_SET_TIMEOUT);
+	mutex_unlock(&hso_dev->mutex);
+	return rv;
+}
+
+/* Creates and sets up everything for rfkill */
+static void hso_create_rfkill(struct hso_device *hso_dev,
+			     struct usb_interface *interface)
+{
+	struct hso_net *hso_net = dev2net(hso_dev);
+	struct device *dev = hso_dev->dev;
+	char *rfkn;
+
+	hso_net->rfkill = rfkill_allocate(&interface_to_usbdev(interface)->dev,
+				 RFKILL_TYPE_WLAN);
+	if (!hso_net->rfkill) {
+		dev_err(dev, "%s - Out of memory", __func__);
+		return;
+	}
+	rfkn = kzalloc(20, GFP_KERNEL);
+	if (!rfkn) {
+		rfkill_free(hso_net->rfkill);
+		dev_err(dev, "%s - Out of memory", __func__);
+		return;
+	}
+	snprintf(rfkn, 20, "hso-%d",
+		 interface->altsetting->desc.bInterfaceNumber);
+	hso_net->rfkill->name = rfkn;
+	hso_net->rfkill->state = RFKILL_STATE_ON;
+	hso_net->rfkill->data = hso_dev;
+	hso_net->rfkill->toggle_radio = hso_radio_toggle;
+	if (rfkill_register(hso_net->rfkill) < 0) {
+		kfree(rfkn);
+		hso_net->rfkill->name = NULL;
+		rfkill_free(hso_net->rfkill);
+		dev_err(dev, "%s - Failed to register rfkill", __func__);
+		return;
+	}
+}
+
+/* Creates our network device */
+static struct hso_device *hso_create_net_device(struct usb_interface *interface)
+{
+	int result, i;
+	struct net_device *net;
+	struct hso_net *hso_net;
+	struct hso_device *hso_dev;
+
+	hso_dev = hso_create_device(interface, HSO_INTF_MUX | HSO_PORT_NETWORK);
+	if (!hso_dev)
+		return NULL;
+
+	/* allocate our network device, then we can put in our private data */
+	/* call hso_net_init to do the basic initialization */
+	net = alloc_netdev(sizeof(struct hso_net), "hso%d", hso_net_init);
+	if (!net) {
+		dev_err(&interface->dev, "Unable to create ethernet device\n");
+		goto exit;
+	}
+
+	hso_net = netdev_priv(net);
+
+	hso_dev->port_data.dev_net = hso_net;
+	hso_net->net = net;
+	hso_net->parent = hso_dev;
+
+	hso_net->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK,
+				      USB_DIR_IN);
+	if (!hso_net->in_endp) {
+		dev_err(&interface->dev, "Can't find BULK IN endpoint\n");
+		goto exit;
+	}
+	hso_net->out_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK,
+				       USB_DIR_OUT);
+	if (!hso_net->out_endp) {
+		dev_err(&interface->dev, "Can't find BULK OUT endpoint\n");
+		goto exit;
+	}
+	SET_NETDEV_DEV(net, &interface->dev);
+
+	/* registering our net device */
+	result = register_netdev(net);
+	if (result) {
+		dev_err(&interface->dev, "Failed to register device\n");
+		goto exit;
+	}
+
+	/* start allocating */
+	for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
+		hso_net->mux_bulk_rx_urb_pool[i] = usb_alloc_urb(0, GFP_KERNEL);
+		if (!hso_net->mux_bulk_rx_urb_pool[i]) {
+			dev_err(&interface->dev, "Could not allocate rx urb\n");
+			goto exit;
+		}
+		hso_net->mux_bulk_rx_buf_pool[i] = kzalloc(MUX_BULK_RX_BUF_SIZE,
+							   GFP_KERNEL);
+		if (!hso_net->mux_bulk_rx_buf_pool[i]) {
+			dev_err(&interface->dev, "Could not allocate rx buf\n");
+			goto exit;
+		}
+	}
+	hso_net->mux_bulk_tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!hso_net->mux_bulk_tx_urb) {
+		dev_err(&interface->dev, "Could not allocate tx urb\n");
+		goto exit;
+	}
+	hso_net->mux_bulk_tx_buf = kzalloc(MUX_BULK_TX_BUF_SIZE, GFP_KERNEL);
+	if (!hso_net->mux_bulk_tx_buf) {
+		dev_err(&interface->dev, "Could not allocate tx buf\n");
+		goto exit;
+	}
+
+	add_net_device(hso_dev);
+
+	hso_log_port(hso_dev);
+
+	hso_create_rfkill(hso_dev, interface);
+
+	return hso_dev;
+exit:
+	hso_free_net_device(hso_dev);
+	return NULL;
+}
+
+/* Frees an AT channel ( goes for both mux and non-mux ) */
+static void hso_free_serial_device(struct hso_device *hso_dev)
+{
+	struct hso_serial *serial = dev2ser(hso_dev);
+
+	if (!serial)
+		return;
+	set_serial_by_index(serial->minor, NULL);
+
+	hso_serial_common_free(serial);
+
+	if (serial->shared_int) {
+		mutex_lock(&serial->shared_int->shared_int_lock);
+		if (--serial->shared_int->ref_count == 0)
+			hso_free_shared_int(serial->shared_int);
+		else
+			mutex_unlock(&serial->shared_int->shared_int_lock);
+	}
+	kfree(serial);
+	hso_free_device(hso_dev);
+}
+
+/* Creates a bulk AT channel */
+static struct hso_device *hso_create_bulk_serial_device(
+			struct usb_interface *interface, int port)
+{
+	struct hso_device *hso_dev;
+	struct hso_serial *serial;
+	int num_urbs;
+
+	hso_dev = hso_create_device(interface, port);
+	if (!hso_dev)
+		return NULL;
+
+	serial = kzalloc(sizeof(*serial), GFP_KERNEL);
+	if (!serial)
+		goto exit;
+
+	serial->parent = hso_dev;
+	hso_dev->port_data.dev_serial = serial;
+
+	if (port & HSO_PORT_MODEM)
+		num_urbs = 2;
+	else
+		num_urbs = 1;
+
+	if (hso_serial_common_create(serial, num_urbs, BULK_URB_RX_SIZE,
+				     BULK_URB_TX_SIZE))
+		goto exit;
+
+	serial->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK,
+				     USB_DIR_IN);
+	if (!serial->in_endp) {
+		dev_err(&interface->dev, "Failed to find BULK IN ep\n");
+		goto exit2;
+	}
+
+	if (!
+	    (serial->out_endp =
+	     hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, USB_DIR_OUT))) {
+		dev_err(&interface->dev, "Failed to find BULK IN ep\n");
+		goto exit2;
+	}
+
+	serial->write_data = hso_std_serial_write_data;
+
+	/* and record this serial */
+	set_serial_by_index(serial->minor, serial);
+
+	/* setup the proc dirs and files if needed */
+	hso_log_port(hso_dev);
+
+	/* done, return it */
+	return hso_dev;
+
+exit2:
+	hso_serial_common_free(serial);
+exit:
+	kfree(serial);
+	hso_free_device(hso_dev);
+	return NULL;
+}
+
+/* Creates a multiplexed AT channel */
+static
+struct hso_device *hso_create_mux_serial_device(struct usb_interface *interface,
+						int port,
+						struct hso_shared_int *mux)
+{
+	struct hso_device *hso_dev;
+	struct hso_serial *serial;
+	int port_spec;
+
+	port_spec = HSO_INTF_MUX;
+	port_spec &= ~HSO_PORT_MASK;
+
+	port_spec |= hso_mux_to_port(port);
+	if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NO_PORT)
+		return NULL;
+
+	hso_dev = hso_create_device(interface, port_spec);
+	if (!hso_dev)
+		return NULL;
+
+	serial = kzalloc(sizeof(*serial), GFP_KERNEL);
+	if (!serial)
+		goto exit;
+
+	hso_dev->port_data.dev_serial = serial;
+	serial->parent = hso_dev;
+
+	if (hso_serial_common_create
+	    (serial, 1, CTRL_URB_RX_SIZE, CTRL_URB_TX_SIZE))
+		goto exit;
+
+	serial->tx_data_length--;
+	serial->write_data = hso_mux_serial_write_data;
+
+	serial->shared_int = mux;
+	mutex_lock(&serial->shared_int->shared_int_lock);
+	serial->shared_int->ref_count++;
+	mutex_unlock(&serial->shared_int->shared_int_lock);
+
+	/* and record this serial */
+	set_serial_by_index(serial->minor, serial);
+
+	/* setup the proc dirs and files if needed */
+	hso_log_port(hso_dev);
+
+	/* done, return it */
+	return hso_dev;
+
+exit:
+	if (serial) {
+		tty_unregister_device(tty_drv, serial->minor);
+		kfree(serial);
+	}
+	if (hso_dev)
+		hso_free_device(hso_dev);
+	return NULL;
+
+}
+
+static void hso_free_shared_int(struct hso_shared_int *mux)
+{
+	usb_free_urb(mux->shared_intr_urb);
+	kfree(mux->shared_intr_buf);
+	mutex_unlock(&mux->shared_int_lock);
+	kfree(mux);
+}
+
+static
+struct hso_shared_int *hso_create_shared_int(struct usb_interface *interface)
+{
+	struct hso_shared_int *mux = kzalloc(sizeof(*mux), GFP_KERNEL);
+
+	if (!mux)
+		return NULL;
+
+	mux->intr_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_INT,
+				    USB_DIR_IN);
+	if (!mux->intr_endp) {
+		dev_err(&interface->dev, "Can't find INT IN endpoint\n");
+		goto exit;
+	}
+
+	mux->shared_intr_urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!mux->shared_intr_urb) {
+		dev_err(&interface->dev, "Could not allocate intr urb?");
+		goto exit;
+	}
+	mux->shared_intr_buf = kzalloc(mux->intr_endp->wMaxPacketSize,
+				       GFP_KERNEL);
+	if (!mux->shared_intr_buf) {
+		dev_err(&interface->dev, "Could not allocate intr buf?");
+		goto exit;
+	}
+
+	mutex_init(&mux->shared_int_lock);
+
+	return mux;
+
+exit:
+	kfree(mux->shared_intr_buf);
+	usb_free_urb(mux->shared_intr_urb);
+	kfree(mux);
+	return NULL;
+}
+
+/* Gets the port spec for a certain interface */
+static int hso_get_config_data(struct usb_interface *interface)
+{
+	struct usb_device *usbdev = interface_to_usbdev(interface);
+	u8 config_data[17];
+	u32 if_num = interface->altsetting->desc.bInterfaceNumber;
+	s32 result;
+
+	if (usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
+			    0x86, 0xC0, 0, 0, config_data, 17,
+			    USB_CTRL_SET_TIMEOUT) != 0x11) {
+		return -EIO;
+	}
+
+	switch (config_data[if_num]) {
+	case 0x0:
+		result = 0;
+		break;
+	case 0x1:
+		result = HSO_PORT_DIAG;
+		break;
+	case 0x2:
+		result = HSO_PORT_GPS;
+		break;
+	case 0x3:
+		result = HSO_PORT_GPS_CONTROL;
+		break;
+	case 0x4:
+		result = HSO_PORT_APP;
+		break;
+	case 0x5:
+		result = HSO_PORT_APP2;
+		break;
+	case 0x6:
+		result = HSO_PORT_CONTROL;
+		break;
+	case 0x7:
+		result = HSO_PORT_NETWORK;
+		break;
+	case 0x8:
+		result = HSO_PORT_MODEM;
+		break;
+	case 0x9:
+		result = HSO_PORT_MSD;
+		break;
+	case 0xa:
+		result = HSO_PORT_PCSC;
+		break;
+	case 0xb:
+		result = HSO_PORT_VOICE;
+		break;
+	default:
+		result = 0;
+	}
+
+	if (result)
+		result |= HSO_INTF_BULK;
+
+	if (config_data[16] & 0x1)
+		result |= HSO_INFO_CRC_BUG;
+
+	return result;
+}
+
+/* called once for each interface upon device insertion */
+static int hso_probe(struct usb_interface *interface,
+		     const struct usb_device_id *id)
+{
+	int mux, i, if_num, port_spec;
+	unsigned char port_mask;
+	struct hso_device *hso_dev = NULL;
+	struct hso_shared_int *shared_int;
+	struct hso_device *tmp_dev = NULL;
+
+	if_num = interface->altsetting->desc.bInterfaceNumber;
+
+	/* Get the interface/port specification from either driver_info or from
+	 * the device itself */
+	if (id->driver_info)
+		port_spec = ((u32 *)(id->driver_info))[if_num];
+	else
+		port_spec = hso_get_config_data(interface);
+
+	if (interface->cur_altsetting->desc.bInterfaceClass != 0xFF) {
+		dev_err(&interface->dev, "Not our interface\n");
+		return -ENODEV;
+	}
+	/* Check if we need to switch to alt interfaces prior to port
+	 * configuration */
+	if (interface->num_altsetting > 1)
+		usb_set_interface(interface_to_usbdev(interface), if_num, 1);
+	interface->needs_remote_wakeup = 1;
+
+	/* Allocate new hso device(s) */
+	switch (port_spec & HSO_INTF_MASK) {
+	case HSO_INTF_MUX:
+		if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) {
+			/* Create the network device */
+			if (!disable_net) {
+				hso_dev = hso_create_net_device(interface);
+				if (!hso_dev)
+					goto exit;
+				tmp_dev = hso_dev;
+			}
+		}
+
+		if (hso_get_mux_ports(interface, &port_mask))
+			/* TODO: de-allocate everything */
+			goto exit;
+
+		shared_int = hso_create_shared_int(interface);
+		if (!shared_int)
+			goto exit;
+
+		for (i = 1, mux = 0; i < 0x100; i = i << 1, mux++) {
+			if (port_mask & i) {
+				hso_dev = hso_create_mux_serial_device(
+						interface, i, shared_int);
+				if (!hso_dev)
+					goto exit;
+			}
+		}
+
+		if (tmp_dev)
+			hso_dev = tmp_dev;
+		break;
+
+	case HSO_INTF_BULK:
+		/* It's a regular bulk interface */
+		if (((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK)
+		    && !disable_net)
+			hso_dev = hso_create_net_device(interface);
+		else
+			hso_dev =
+			    hso_create_bulk_serial_device(interface, port_spec);
+		if (!hso_dev)
+			goto exit;
+		break;
+	default:
+		goto exit;
+	}
+
+	usb_driver_claim_interface(&hso_driver, interface, hso_dev);
+
+	/* save our data pointer in this device */
+	usb_set_intfdata(interface, hso_dev);
+
+	/* done */
+	return 0;
+exit:
+	hso_free_interface(interface);
+	return -ENODEV;
+}
+
+/* device removed, cleaning up */
+static void hso_disconnect(struct usb_interface *interface)
+{
+	hso_free_interface(interface);
+
+	/* remove reference of our private data */
+	usb_set_intfdata(interface, NULL);
+
+	usb_driver_release_interface(&hso_driver, interface);
+}
+
+static void async_get_intf(struct work_struct *data)
+{
+	struct hso_device *hso_dev =
+	    container_of(data, struct hso_device, async_get_intf);
+	usb_autopm_get_interface(hso_dev->interface);
+}
+
+static void async_put_intf(struct work_struct *data)
+{
+	struct hso_device *hso_dev =
+	    container_of(data, struct hso_device, async_put_intf);
+	usb_autopm_put_interface(hso_dev->interface);
+}
+
+static int hso_get_activity(struct hso_device *hso_dev)
+{
+	if (hso_dev->usb->state == USB_STATE_SUSPENDED) {
+		if (!hso_dev->is_active) {
+			hso_dev->is_active = 1;
+			schedule_work(&hso_dev->async_get_intf);
+		}
+	}
+
+	if (hso_dev->usb->state != USB_STATE_CONFIGURED)
+		return -EAGAIN;
+
+	usb_mark_last_busy(hso_dev->usb);
+
+	return 0;
+}
+
+static int hso_put_activity(struct hso_device *hso_dev)
+{
+	if (hso_dev->usb->state != USB_STATE_SUSPENDED) {
+		if (hso_dev->is_active) {
+			hso_dev->is_active = 0;
+			schedule_work(&hso_dev->async_put_intf);
+			return -EAGAIN;
+		}
+	}
+	hso_dev->is_active = 0;
+	return 0;
+}
+
+/* called by kernel when we need to suspend device */
+static int hso_suspend(struct usb_interface *iface, pm_message_t message)
+{
+	int i, result;
+
+	/* Stop all serial ports */
+	for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
+		if (serial_table[i] && (serial_table[i]->interface == iface)) {
+			result = hso_stop_serial_device(serial_table[i]);
+			if (result)
+				goto out;
+		}
+	}
+
+	/* Stop all network ports */
+	for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
+		if (network_table[i] &&
+		    (network_table[i]->interface == iface)) {
+			result = hso_stop_net_device(network_table[i]);
+			if (result)
+				goto out;
+		}
+	}
+
+out:
+	return 0;
+}
+
+/* called by kernel when we need to resume device */
+static int hso_resume(struct usb_interface *iface)
+{
+	int i, result = 0;
+	struct hso_net *hso_net;
+
+	/* Start all serial ports */
+	for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
+		if (serial_table[i] && (serial_table[i]->interface == iface)) {
+			if (dev2ser(serial_table[i])->open_count) {
+				result =
+				    hso_start_serial_device(serial_table[i], GFP_NOIO);
+				hso_kick_transmit(dev2ser(serial_table[i]));
+				if (result)
+					goto out;
+			}
+		}
+	}
+
+	/* Start all network ports */
+	for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
+		if (network_table[i] &&
+		    (network_table[i]->interface == iface)) {
+			hso_net = dev2net(network_table[i]);
+			/* First transmit any lingering data, then restart the
+			 * device. */
+			if (hso_net->skb_tx_buf) {
+				dev_dbg(&iface->dev,
+					"Transmitting lingering data\n");
+				hso_net_start_xmit(hso_net->skb_tx_buf,
+						   hso_net->net);
+				hso_net->skb_tx_buf = NULL;
+			}
+			result = hso_start_net_device(network_table[i]);
+			if (result)
+				goto out;
+		}
+	}
+
+out:
+	return result;
+}
+
+static void hso_serial_ref_free(struct kref *ref)
+{
+	struct hso_device *hso_dev = container_of(ref, struct hso_device, ref);
+
+	hso_free_serial_device(hso_dev);
+}
+
+static void hso_free_interface(struct usb_interface *interface)
+{
+	struct hso_serial *hso_dev;
+	int i;
+
+	for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
+		if (serial_table[i]
+		    && (serial_table[i]->interface == interface)) {
+			hso_dev = dev2ser(serial_table[i]);
+			if (hso_dev->tty)
+				tty_hangup(hso_dev->tty);
+			mutex_lock(&hso_dev->parent->mutex);
+			hso_dev->parent->usb_gone = 1;
+			mutex_unlock(&hso_dev->parent->mutex);
+			kref_put(&serial_table[i]->ref, hso_serial_ref_free);
+		}
+	}
+
+	for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
+		if (network_table[i]
+		    && (network_table[i]->interface == interface)) {
+			struct rfkill *rfk = dev2net(network_table[i])->rfkill;
+			/* hso_stop_net_device doesn't stop the net queue since
+			 * traffic needs to start it again when suspended */
+			netif_stop_queue(dev2net(network_table[i])->net);
+			hso_stop_net_device(network_table[i]);
+			cancel_work_sync(&network_table[i]->async_put_intf);
+			cancel_work_sync(&network_table[i]->async_get_intf);
+			if (rfk)
+				rfkill_unregister(rfk);
+			hso_free_net_device(network_table[i]);
+		}
+	}
+}
+
+/* Helper functions */
+
+/* Get the endpoint ! */
+static struct usb_endpoint_descriptor *hso_get_ep(struct usb_interface *intf,
+						  int type, int dir)
+{
+	int i;
+	struct usb_host_interface *iface = intf->cur_altsetting;
+	struct usb_endpoint_descriptor *endp;
+
+	for (i = 0; i < iface->desc.bNumEndpoints; i++) {
+		endp = &iface->endpoint[i].desc;
+		if (((endp->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == dir) &&
+		    ((endp->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == type))
+			return endp;
+	}
+
+	return NULL;
+}
+
+/* Get the byte that describes which ports are enabled */
+static int hso_get_mux_ports(struct usb_interface *intf, unsigned char *ports)
+{
+	int i;
+	struct usb_host_interface *iface = intf->cur_altsetting;
+
+	if (iface->extralen == 3) {
+		*ports = iface->extra[2];
+		return 0;
+	}
+
+	for (i = 0; i < iface->desc.bNumEndpoints; i++) {
+		if (iface->endpoint[i].extralen == 3) {
+			*ports = iface->endpoint[i].extra[2];
+			return 0;
+		}
+	}
+
+	return -1;
+}
+
+/* interrupt urb needs to be submitted, used for serial read of muxed port */
+static int hso_mux_submit_intr_urb(struct hso_shared_int *shared_int,
+				   struct usb_device *usb, gfp_t gfp)
+{
+	int result;
+
+	usb_fill_int_urb(shared_int->shared_intr_urb, usb,
+			 usb_rcvintpipe(usb,
+				shared_int->intr_endp->bEndpointAddress & 0x7F),
+			 shared_int->shared_intr_buf,
+			 shared_int->intr_endp->wMaxPacketSize,
+			 intr_callback, shared_int,
+			 shared_int->intr_endp->bInterval);
+
+	result = usb_submit_urb(shared_int->shared_intr_urb, gfp);
+	if (result)
+		dev_warn(&usb->dev, "%s failed mux_intr_urb %d", __func__,
+			result);
+
+	return result;
+}
+
+/* operations setup of the serial interface */
+static const struct tty_operations hso_serial_ops = {
+	.open = hso_serial_open,
+	.close = hso_serial_close,
+	.write = hso_serial_write,
+	.write_room = hso_serial_write_room,
+	.set_termios = hso_serial_set_termios,
+	.chars_in_buffer = hso_serial_chars_in_buffer,
+	.tiocmget = hso_serial_tiocmget,
+	.tiocmset = hso_serial_tiocmset,
+	.unthrottle = hso_unthrottle
+};
+
+static struct usb_driver hso_driver = {
+	.name = driver_name,
+	.probe = hso_probe,
+	.disconnect = hso_disconnect,
+	.id_table = hso_ids,
+	.suspend = hso_suspend,
+	.resume = hso_resume,
+	.supports_autosuspend = 1,
+};
+
+static int __init hso_init(void)
+{
+	int i;
+	int result;
+
+	/* put it in the log */
+	printk(KERN_INFO "hso: %s\n", version);
+
+	/* Initialise the serial table semaphore and table */
+	spin_lock_init(&serial_table_lock);
+	for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++)
+		serial_table[i] = NULL;
+
+	/* allocate our driver using the proper amount of supported minors */
+	tty_drv = alloc_tty_driver(HSO_SERIAL_TTY_MINORS);
+	if (!tty_drv)
+		return -ENOMEM;
+
+	/* fill in all needed values */
+	tty_drv->magic = TTY_DRIVER_MAGIC;
+	tty_drv->owner = THIS_MODULE;
+	tty_drv->driver_name = driver_name;
+	tty_drv->name = tty_filename;
+
+	/* if major number is provided as parameter, use that one */
+	if (tty_major)
+		tty_drv->major = tty_major;
+
+	tty_drv->minor_start = 0;
+	tty_drv->num = HSO_SERIAL_TTY_MINORS;
+	tty_drv->type = TTY_DRIVER_TYPE_SERIAL;
+	tty_drv->subtype = SERIAL_TYPE_NORMAL;
+	tty_drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+	tty_drv->init_termios = tty_std_termios;
+	tty_drv->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+	tty_drv->termios = hso_serial_termios;
+	tty_drv->termios_locked = hso_serial_termios_locked;
+	tty_set_operations(tty_drv, &hso_serial_ops);
+
+	/* register the tty driver */
+	result = tty_register_driver(tty_drv);
+	if (result) {
+		printk(KERN_ERR "%s - tty_register_driver failed(%d)\n",
+			__func__, result);
+		return result;
+	}
+
+	/* register this module as an usb driver */
+	result = usb_register(&hso_driver);
+	if (result) {
+		printk(KERN_ERR "Could not register hso driver? error: %d\n",
+			result);
+		/* cleanup serial interface */
+		tty_unregister_driver(tty_drv);
+		return result;
+	}
+
+	/* done */
+	return 0;
+}
+
+static void __exit hso_exit(void)
+{
+	printk(KERN_INFO "hso: unloaded\n");
+
+	tty_unregister_driver(tty_drv);
+	/* deregister the usb driver */
+	usb_deregister(&hso_driver);
+}
+
+/* Module definitions */
+module_init(hso_init);
+module_exit(hso_exit);
+
+MODULE_AUTHOR(MOD_AUTHOR);
+MODULE_DESCRIPTION(MOD_DESCRIPTION);
+MODULE_LICENSE(MOD_LICENSE);
+MODULE_INFO(Version, DRIVER_VERSION);
+
+/* change the debug level (eg: insmod hso.ko debug=0x04) */
+MODULE_PARM_DESC(debug, "Level of debug [0x01 | 0x02 | 0x04 | 0x08 | 0x10]");
+module_param(debug, int, S_IRUGO | S_IWUSR);
+
+/* set the major tty number (eg: insmod hso.ko tty_major=245) */
+MODULE_PARM_DESC(tty_major, "Set the major tty number");
+module_param(tty_major, int, S_IRUGO | S_IWUSR);
+
+/* disable network interface (eg: insmod hso.ko disable_net=1) */
+MODULE_PARM_DESC(disable_net, "Disable the network interface");
+module_param(disable_net, int, S_IRUGO | S_IWUSR);
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index d6829db51b4..fdbf3be24fd 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -832,7 +832,7 @@ static int kaweth_start_xmit(struct sk_buff *skb, struct net_device *net)
 
 	if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC)))
 	{
-		warn("kaweth failed tx_urb %d", res);
+		dev_warn(&net->dev, "kaweth failed tx_urb %d\n", res);
 skip:
 		kaweth->stats.tx_errors++;
 
@@ -924,7 +924,7 @@ static void kaweth_tx_timeout(struct net_device *net)
 {
 	struct kaweth_device *kaweth = netdev_priv(net);
 
-	warn("%s: Tx timed out. Resetting.", net->name);
+	dev_warn(&net->dev, "%s: Tx timed out. Resetting.\n", net->name);
 	kaweth->stats.tx_errors++;
 	net->trans_start = jiffies;
 
@@ -1016,10 +1016,10 @@ static int kaweth_probe(
 	 */
 
 	if (le16_to_cpu(dev->descriptor.bcdDevice) >> 8) {
-		info("Firmware present in device.");
+		dev_info(&intf->dev, "Firmware present in device.\n");
 	} else {
 		/* Download the firmware */
-		info("Downloading firmware...");
+		dev_info(&intf->dev, "Downloading firmware...\n");
 		kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL);
 		if ((result = kaweth_download_firmware(kaweth,
 						      "kaweth/new_code.bin",
@@ -1061,7 +1061,7 @@ static int kaweth_probe(
 		}
 
 		/* Device will now disappear for a moment...  */
-		info("Firmware loaded.  I'll be back...");
+		dev_info(&intf->dev, "Firmware loaded.  I'll be back...\n");
 err_fw:
 		free_page((unsigned long)kaweth->firmware_buf);
 		free_netdev(netdev);
@@ -1075,10 +1075,10 @@ err_fw:
 		goto err_free_netdev;
 	}
 
-	info("Statistics collection: %x", kaweth->configuration.statistics_mask);
-	info("Multicast filter limit: %x", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1));
-	info("MTU: %d", le16_to_cpu(kaweth->configuration.segment_size));
-	info("Read MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
+	dev_info(&intf->dev, "Statistics collection: %x\n", kaweth->configuration.statistics_mask);
+	dev_info(&intf->dev, "Multicast filter limit: %x\n", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1));
+	dev_info(&intf->dev, "MTU: %d\n", le16_to_cpu(kaweth->configuration.segment_size));
+	dev_info(&intf->dev, "Read MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
 		 (int)kaweth->configuration.hw_addr[0],
 		 (int)kaweth->configuration.hw_addr[1],
 		 (int)kaweth->configuration.hw_addr[2],
@@ -1174,7 +1174,8 @@ err_fw:
 		goto err_intfdata;
 	}
 
-	info("kaweth interface created at %s", kaweth->net->name);
+	dev_info(&intf->dev, "kaweth interface created at %s\n",
+		 kaweth->net->name);
 
 	dbg("Kaweth probe returning.");
 
@@ -1205,11 +1206,11 @@ static void kaweth_disconnect(struct usb_interface *intf)
 	struct kaweth_device *kaweth = usb_get_intfdata(intf);
 	struct net_device *netdev;
 
-	info("Unregistering");
+	dev_info(&intf->dev, "Unregistering\n");
 
 	usb_set_intfdata(intf, NULL);
 	if (!kaweth) {
-		warn("unregistering non-existant device");
+		dev_warn(&intf->dev, "unregistering non-existant device\n");
 		return;
 	}
 	netdev = kaweth->net;
@@ -1269,7 +1270,7 @@ static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length)
 
 	if (!wait_event_timeout(awd.wqh, awd.done, timeout)) {
                 // timeout
-                warn("usb_control/bulk_msg: timeout");
+                dev_warn(&urb->dev->dev, "usb_control/bulk_msg: timeout\n");
                 usb_kill_urb(urb);  // remove urb safely
                 status = -ETIMEDOUT;
         }
diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
index c3d119f997f..b5143509e8b 100644
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -46,6 +46,10 @@
 
 #define MCS7830_VENDOR_ID	0x9710
 #define MCS7830_PRODUCT_ID	0x7830
+#define MCS7730_PRODUCT_ID	0x7730
+
+#define SITECOM_VENDOR_ID	0x0DF6
+#define LN_030_PRODUCT_ID	0x0021
 
 #define MCS7830_MII_ADVERTISE	(ADVERTISE_PAUSE_CAP | ADVERTISE_100FULL | \
 				 ADVERTISE_100HALF | ADVERTISE_10FULL | \
@@ -114,7 +118,7 @@ static void mcs7830_async_cmd_callback(struct urb *urb)
 
 	if (urb->status < 0)
 		printk(KERN_DEBUG "%s() failed with %d\n",
-		       __FUNCTION__, urb->status);
+		       __func__, urb->status);
 
 	kfree(req);
 	usb_free_urb(urb);
@@ -442,6 +446,29 @@ static struct ethtool_ops mcs7830_ethtool_ops = {
 	.nway_reset		= usbnet_nway_reset,
 };
 
+static int mcs7830_set_mac_address(struct net_device *netdev, void *p)
+{
+	int ret;
+	struct usbnet *dev = netdev_priv(netdev);
+	struct sockaddr *addr = p;
+
+	if (netif_running(netdev))
+		return -EBUSY;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EINVAL;
+
+	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+
+	ret = mcs7830_set_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN,
+			netdev->dev_addr);
+
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
 static int mcs7830_bind(struct usbnet *dev, struct usb_interface *udev)
 {
 	struct net_device *net = dev->net;
@@ -455,6 +482,7 @@ static int mcs7830_bind(struct usbnet *dev, struct usb_interface *udev)
 	net->ethtool_ops = &mcs7830_ethtool_ops;
 	net->set_multicast_list = mcs7830_set_multicast;
 	mcs7830_set_multicast(net);
+	net->set_mac_address = mcs7830_set_mac_address;
 
 	/* reserve space for the status byte on rx */
 	dev->rx_urb_size = ETH_FRAME_LEN + 1;
@@ -491,7 +519,16 @@ static int mcs7830_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 }
 
 static const struct driver_info moschip_info = {
-	.description	= "MOSCHIP 7830 usb-NET adapter",
+	.description	= "MOSCHIP 7830/7730 usb-NET adapter",
+	.bind		= mcs7830_bind,
+	.rx_fixup	= mcs7830_rx_fixup,
+	.flags		= FLAG_ETHER,
+	.in		= 1,
+	.out		= 2,
+};
+
+static const struct driver_info sitecom_info = {
+	.description    = "Sitecom LN-30 usb-NET adapter",
 	.bind		= mcs7830_bind,
 	.rx_fixup	= mcs7830_rx_fixup,
 	.flags		= FLAG_ETHER,
@@ -504,6 +541,14 @@ static const struct usb_device_id products[] = {
 		USB_DEVICE(MCS7830_VENDOR_ID, MCS7830_PRODUCT_ID),
 		.driver_info = (unsigned long) &moschip_info,
 	},
+	{
+		USB_DEVICE(MCS7830_VENDOR_ID, MCS7730_PRODUCT_ID),
+		.driver_info = (unsigned long) &moschip_info,
+	},
+	{
+		USB_DEVICE(SITECOM_VENDOR_ID, LN_030_PRODUCT_ID),
+		.driver_info = (unsigned long) &sitecom_info,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(usb, products);
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index b588c890ea7..7914867110e 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -117,9 +117,9 @@ static void ctrl_callback(struct urb *urb)
 	case -ENOENT:
 		break;
 	default:
-		if (netif_msg_drv(pegasus))
+		if (netif_msg_drv(pegasus) && printk_ratelimit())
 			dev_dbg(&pegasus->intf->dev, "%s, status %d\n",
-				__FUNCTION__, urb->status);
+				__func__, urb->status);
 	}
 	pegasus->flags &= ~ETH_REGS_CHANGED;
 	wake_up(&pegasus->ctrl_wait);
@@ -136,7 +136,7 @@ static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
 	if (!buffer) {
 		if (netif_msg_drv(pegasus))
 			dev_warn(&pegasus->intf->dev, "out of memory in %s\n",
-					__FUNCTION__);
+					__func__);
 		return -ENOMEM;
 	}
 	add_wait_queue(&pegasus->ctrl_wait, &wait);
@@ -166,9 +166,9 @@ static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
 		set_current_state(TASK_RUNNING);
 		if (ret == -ENODEV)
 			netif_device_detach(pegasus->net);
-		if (netif_msg_drv(pegasus))
+		if (netif_msg_drv(pegasus) && printk_ratelimit())
 			dev_err(&pegasus->intf->dev, "%s, status %d\n",
-					__FUNCTION__, ret);
+					__func__, ret);
 		goto out;
 	}
 
@@ -192,7 +192,7 @@ static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
 	if (!buffer) {
 		if (netif_msg_drv(pegasus))
 			dev_warn(&pegasus->intf->dev, "out of memory in %s\n",
-					__FUNCTION__);
+					__func__);
 		return -ENOMEM;
 	}
 	memcpy(buffer, data, size);
@@ -224,7 +224,7 @@ static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
 			netif_device_detach(pegasus->net);
 		if (netif_msg_drv(pegasus))
 			dev_err(&pegasus->intf->dev, "%s, status %d\n",
-					__FUNCTION__, ret);
+					__func__, ret);
 		goto out;
 	}
 
@@ -246,7 +246,7 @@ static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data)
 	if (!tmp) {
 		if (netif_msg_drv(pegasus))
 			dev_warn(&pegasus->intf->dev, "out of memory in %s\n",
-					__FUNCTION__);
+					__func__);
 		return -ENOMEM;
 	}
 	memcpy(tmp, &data, 1);
@@ -275,9 +275,9 @@ static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data)
 	if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
 		if (ret == -ENODEV)
 			netif_device_detach(pegasus->net);
-		if (netif_msg_drv(pegasus))
+		if (netif_msg_drv(pegasus) && printk_ratelimit())
 			dev_err(&pegasus->intf->dev, "%s, status %d\n",
-					__FUNCTION__, ret);
+					__func__, ret);
 		goto out;
 	}
 
@@ -310,7 +310,7 @@ static int update_eth_regs_async(pegasus_t * pegasus)
 			netif_device_detach(pegasus->net);
 		if (netif_msg_drv(pegasus))
 			dev_err(&pegasus->intf->dev, "%s, status %d\n",
-					__FUNCTION__, ret);
+					__func__, ret);
 	}
 
 	return ret;
@@ -341,7 +341,7 @@ static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd)
 	}
 fail:
 	if (netif_msg_drv(pegasus))
-		dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__);
+		dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
 
 	return ret;
 }
@@ -378,7 +378,7 @@ static int write_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 regd)
 
 fail:
 	if (netif_msg_drv(pegasus))
-		dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__);
+		dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
 	return -ETIMEDOUT;
 }
 
@@ -415,7 +415,7 @@ static int read_eprom_word(pegasus_t * pegasus, __u8 index, __u16 * retdata)
 
 fail:
 	if (netif_msg_drv(pegasus))
-		dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__);
+		dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
 	return -ETIMEDOUT;
 }
 
@@ -463,7 +463,7 @@ static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data)
 		return ret;
 fail:
 	if (netif_msg_drv(pegasus))
-		dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__);
+		dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
 	return -ETIMEDOUT;
 }
 #endif				/* PEGASUS_WRITE_EEPROM */
@@ -1209,8 +1209,7 @@ static void pegasus_set_multicast(struct net_device *net)
 		pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS;
 		if (netif_msg_link(pegasus))
 			pr_info("%s: Promiscuous mode enabled.\n", net->name);
-	} else if (net->mc_count ||
-		   (net->flags & IFF_ALLMULTI)) {
+	} else if (net->mc_count || (net->flags & IFF_ALLMULTI)) {
 		pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
 		pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
 		if (netif_msg_link(pegasus))
@@ -1220,6 +1219,8 @@ static void pegasus_set_multicast(struct net_device *net)
 		pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
 	}
 
+	pegasus->ctrl_urb->status = 0;
+
 	pegasus->flags |= ETH_REGS_CHANGE;
 	ctrl_callback(pegasus->ctrl_urb);
 }
@@ -1285,6 +1286,21 @@ static void check_carrier(struct work_struct *work)
 	}
 }
 
+static int pegasus_blacklisted(struct usb_device *udev)
+{
+	struct usb_device_descriptor *udd = &udev->descriptor;
+
+	/* Special quirk to keep the driver from handling the Belkin Bluetooth
+	 * dongle which happens to have the same ID.
+	 */
+	if ((udd->idVendor == VENDOR_BELKIN && udd->idProduct == 0x0121) &&
+	    (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) &&
+	    (udd->bDeviceProtocol == 1))
+		return 1;
+
+	return 0;
+}
+
 static int pegasus_probe(struct usb_interface *intf,
 			 const struct usb_device_id *id)
 {
@@ -1296,6 +1312,12 @@ static int pegasus_probe(struct usb_interface *intf,
 	DECLARE_MAC_BUF(mac);
 
 	usb_get_dev(dev);
+
+	if (pegasus_blacklisted(dev)) {
+		res = -ENODEV;
+		goto out;
+	}
+
 	net = alloc_etherdev(sizeof(struct pegasus));
 	if (!net) {
 		dev_err(&intf->dev, "can't allocate %s\n", "device");
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index ae467f182c4..bcd858c567e 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -74,7 +74,7 @@ EXPORT_SYMBOL_GPL(rndis_status);
  * Call context is likely probe(), before interface name is known,
  * which is why we won't try to use it in the diagnostics.
  */
-int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf)
+int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen)
 {
 	struct cdc_state	*info = (void *) &dev->data;
 	int			master_ifnum;
@@ -121,7 +121,7 @@ int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf)
 			USB_CDC_GET_ENCAPSULATED_RESPONSE,
 			USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 			0, master_ifnum,
-			buf, CONTROL_BUFFER_SIZE,
+			buf, buflen,
 			RNDIS_CONTROL_TIMEOUT_MS);
 		if (likely(retval >= 8)) {
 			msg_len = le32_to_cpu(buf->msg_len);
@@ -239,7 +239,7 @@ static int rndis_query(struct usbnet *dev, struct usb_interface *intf,
 	u.get->len = cpu_to_le32(in_len);
 	u.get->offset = ccpu2(20);
 
-	retval = rndis_command(dev, u.header);
+	retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
 	if (unlikely(retval < 0)) {
 		dev_err(&intf->dev, "RNDIS_MSG_QUERY(0x%08x) failed, %d\n",
 				oid, retval);
@@ -328,7 +328,7 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
 	u.init->max_transfer_size = cpu_to_le32(dev->rx_urb_size);
 
 	net->change_mtu = NULL;
-	retval = rndis_command(dev, u.header);
+	retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
 	if (unlikely(retval < 0)) {
 		/* it might not even be an RNDIS device!! */
 		dev_err(&intf->dev, "RNDIS init failed, %d\n", retval);
@@ -409,7 +409,7 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
 	u.set->offset = ccpu2((sizeof *u.set) - 8);
 	*(__le32 *)(u.buf + sizeof *u.set) = RNDIS_DEFAULT_FILTER;
 
-	retval = rndis_command(dev, u.header);
+	retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
 	if (unlikely(retval < 0)) {
 		dev_err(&intf->dev, "rndis set packet filter, %d\n", retval);
 		goto halt_fail_and_release;
@@ -424,7 +424,7 @@ halt_fail_and_release:
 	memset(u.halt, 0, sizeof *u.halt);
 	u.halt->msg_type = RNDIS_MSG_HALT;
 	u.halt->msg_len = ccpu2(sizeof *u.halt);
-	(void) rndis_command(dev, (void *)u.halt);
+	(void) rndis_command(dev, (void *)u.halt, CONTROL_BUFFER_SIZE);
 fail_and_release:
 	usb_set_intfdata(info->data, NULL);
 	usb_driver_release_interface(driver_of(intf), info->data);
@@ -449,7 +449,7 @@ void rndis_unbind(struct usbnet *dev, struct usb_interface *intf)
 	if (halt) {
 		halt->msg_type = RNDIS_MSG_HALT;
 		halt->msg_len = ccpu2(sizeof *halt);
-		(void) rndis_command(dev, (void *)halt);
+		(void) rndis_command(dev, (void *)halt, CONTROL_BUFFER_SIZE);
 		kfree(halt);
 	}
 
@@ -576,6 +576,10 @@ static const struct usb_device_id	products [] = {
 	/* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
 	USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
 	.driver_info = (unsigned long) &rndis_info,
+}, {
+	/* RNDIS for tethering */
+	USB_INTERFACE_INFO(USB_CLASS_WIRELESS_CONTROLLER, 1, 3),
+	.driver_info = (unsigned long) &rndis_info,
 },
 	{ },		// END
 };
diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c
index df56a518691..6133401ebc6 100644
--- a/drivers/net/usb/rtl8150.c
+++ b/drivers/net/usb/rtl8150.c
@@ -221,7 +221,7 @@ static void ctrl_callback(struct urb *urb)
 	case -ENOENT:
 		break;
 	default:
-		warn("ctrl urb status %d", urb->status);
+		dev_warn(&urb->dev->dev, "ctrl urb status %d\n", urb->status);
 	}
 	dev = urb->context;
 	clear_bit(RX_REG_SET, &dev->flags);
@@ -441,10 +441,10 @@ static void read_bulk_callback(struct urb *urb)
 	case -ENOENT:
 		return;	/* the urb is in unlink state */
 	case -ETIME:
-		warn("may be reset is needed?..");
+		dev_warn(&urb->dev->dev, "may be reset is needed?..\n");
 		goto goon;
 	default:
-		warn("Rx status %d", urb->status);
+		dev_warn(&urb->dev->dev, "Rx status %d\n", urb->status);
 		goto goon;
 	}
 
@@ -538,7 +538,8 @@ static void write_bulk_callback(struct urb *urb)
 	if (!netif_device_present(dev->netdev))
 		return;
 	if (urb->status)
-		info("%s: Tx status %d", dev->netdev->name, urb->status);
+		dev_info(&urb->dev->dev, "%s: Tx status %d\n",
+			 dev->netdev->name, urb->status);
 	dev->netdev->trans_start = jiffies;
 	netif_wake_queue(dev->netdev);
 }
@@ -561,7 +562,8 @@ static void intr_callback(struct urb *urb)
 		return;
 	/* -EPIPE:  should clear the halt */
 	default:
-		info("%s: intr status %d", dev->netdev->name, urb->status);
+		dev_info(&urb->dev->dev, "%s: intr status %d\n",
+			 dev->netdev->name, urb->status);
 		goto resubmit;
 	}
 
@@ -665,7 +667,7 @@ static int enable_net_traffic(rtl8150_t * dev)
 	u8 cr, tcr, rcr, msr;
 
 	if (!rtl8150_reset(dev)) {
-		warn("%s - device reset failed", __FUNCTION__);
+		dev_warn(&dev->udev->dev, "device reset failed\n");
 	}
 	/* RCR bit7=1 attach Rx info at the end;  =0 HW CRC (which is broken) */
 	rcr = 0x9e;
@@ -699,7 +701,7 @@ static struct net_device_stats *rtl8150_netdev_stats(struct net_device *dev)
 static void rtl8150_tx_timeout(struct net_device *netdev)
 {
 	rtl8150_t *dev = netdev_priv(netdev);
-	warn("%s: Tx timeout.", netdev->name);
+	dev_warn(&netdev->dev, "Tx timeout.\n");
 	usb_unlink_urb(dev->tx_urb);
 	dev->stats.tx_errors++;
 }
@@ -710,12 +712,12 @@ static void rtl8150_set_multicast(struct net_device *netdev)
 	netif_stop_queue(netdev);
 	if (netdev->flags & IFF_PROMISC) {
 		dev->rx_creg |= cpu_to_le16(0x0001);
-		info("%s: promiscuous mode", netdev->name);
+		dev_info(&netdev->dev, "%s: promiscuous mode\n", netdev->name);
 	} else if (netdev->mc_count ||
 		   (netdev->flags & IFF_ALLMULTI)) {
 		dev->rx_creg &= cpu_to_le16(0xfffe);
 		dev->rx_creg |= cpu_to_le16(0x0002);
-		info("%s: allmulti set", netdev->name);
+		dev_info(&netdev->dev, "%s: allmulti set\n", netdev->name);
 	} else {
 		/* ~RX_MULTICAST, ~RX_PROMISCUOUS */
 		dev->rx_creg &= cpu_to_le16(0x00fc);
@@ -740,7 +742,7 @@ static int rtl8150_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 		if (res == -ENODEV)
 			netif_device_detach(dev->netdev);
 		else {
-			warn("failed tx_urb %d\n", res);
+			dev_warn(&netdev->dev, "failed tx_urb %d\n", res);
 			dev->stats.tx_errors++;
 			netif_start_queue(netdev);
 		}
@@ -783,7 +785,7 @@ static int rtl8150_open(struct net_device *netdev)
 	if ((res = usb_submit_urb(dev->rx_urb, GFP_KERNEL))) {
 		if (res == -ENODEV)
 			netif_device_detach(dev->netdev);
-		warn("%s: rx_urb submit failed: %d", __FUNCTION__, res);
+		dev_warn(&netdev->dev, "rx_urb submit failed: %d\n", res);
 		return res;
 	}
 	usb_fill_int_urb(dev->intr_urb, dev->udev, usb_rcvintpipe(dev->udev, 3),
@@ -792,7 +794,7 @@ static int rtl8150_open(struct net_device *netdev)
 	if ((res = usb_submit_urb(dev->intr_urb, GFP_KERNEL))) {
 		if (res == -ENODEV)
 			netif_device_detach(dev->netdev);
-		warn("%s: intr_urb submit failed: %d", __FUNCTION__, res);
+		dev_warn(&netdev->dev, "intr_urb submit failed: %d\n", res);
 		usb_kill_urb(dev->rx_urb);
 		return res;
 	}
@@ -947,7 +949,7 @@ static int rtl8150_probe(struct usb_interface *intf,
 		goto out2;
 	}
 
-	info("%s: rtl8150 is detected", netdev->name);
+	dev_info(&intf->dev, "%s: rtl8150 is detected\n", netdev->name);
 
 	return 0;
 
@@ -984,7 +986,8 @@ static void rtl8150_disconnect(struct usb_interface *intf)
 
 static int __init usb_rtl8150_init(void)
 {
-	info(DRIVER_DESC " " DRIVER_VERSION);
+	printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
+	       DRIVER_DESC "\n");
 	return usb_register(&rtl8150_driver);
 }
 
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
new file mode 100644
index 00000000000..51e2f5d7d14
--- /dev/null
+++ b/drivers/net/usb/smsc95xx.c
@@ -0,0 +1,1225 @@
+ /***************************************************************************
+ *
+ * Copyright (C) 2007-2008 SMSC
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ *****************************************************************************/
+
+#include <linux/module.h>
+#include <linux/kmod.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/usb/usbnet.h>
+#include "smsc95xx.h"
+
+#define SMSC_CHIPNAME			"smsc95xx"
+#define SMSC_DRIVER_VERSION		"1.0.3"
+#define HS_USB_PKT_SIZE			(512)
+#define FS_USB_PKT_SIZE			(64)
+#define DEFAULT_HS_BURST_CAP_SIZE	(16 * 1024 + 5 * HS_USB_PKT_SIZE)
+#define DEFAULT_FS_BURST_CAP_SIZE	(6 * 1024 + 33 * FS_USB_PKT_SIZE)
+#define DEFAULT_BULK_IN_DELAY		(0x00002000)
+#define MAX_SINGLE_PACKET_SIZE		(2048)
+#define LAN95XX_EEPROM_MAGIC		(0x9500)
+#define EEPROM_MAC_OFFSET		(0x01)
+#define DEFAULT_RX_CSUM_ENABLE		(true)
+#define SMSC95XX_INTERNAL_PHY_ID	(1)
+#define SMSC95XX_TX_OVERHEAD		(8)
+#define FLOW_CTRL_TX			(1)
+#define FLOW_CTRL_RX			(2)
+
+struct smsc95xx_priv {
+	u32 mac_cr;
+	spinlock_t mac_cr_lock;
+	bool use_rx_csum;
+};
+
+struct usb_context {
+	struct usb_ctrlrequest req;
+	struct completion notify;
+	struct usbnet *dev;
+};
+
+int turbo_mode = true;
+module_param(turbo_mode, bool, 0644);
+MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
+
+static int smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data)
+{
+	u32 *buf = kmalloc(4, GFP_KERNEL);
+	int ret;
+
+	BUG_ON(!dev);
+
+	if (!buf)
+		return -ENOMEM;
+
+	ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+		USB_VENDOR_REQUEST_READ_REGISTER,
+		USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+		00, index, buf, 4, USB_CTRL_GET_TIMEOUT);
+
+	if (unlikely(ret < 0))
+		devwarn(dev, "Failed to read register index 0x%08x", index);
+
+	le32_to_cpus(buf);
+	*data = *buf;
+	kfree(buf);
+
+	return ret;
+}
+
+static int smsc95xx_write_reg(struct usbnet *dev, u32 index, u32 data)
+{
+	u32 *buf = kmalloc(4, GFP_KERNEL);
+	int ret;
+
+	BUG_ON(!dev);
+
+	if (!buf)
+		return -ENOMEM;
+
+	*buf = data;
+	cpu_to_le32s(buf);
+
+	ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+		USB_VENDOR_REQUEST_WRITE_REGISTER,
+		USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+		00, index, buf, 4, USB_CTRL_SET_TIMEOUT);
+
+	if (unlikely(ret < 0))
+		devwarn(dev, "Failed to write register index 0x%08x", index);
+
+	kfree(buf);
+
+	return ret;
+}
+
+/* Loop until the read is completed with timeout
+ * called with phy_mutex held */
+static int smsc95xx_phy_wait_not_busy(struct usbnet *dev)
+{
+	unsigned long start_time = jiffies;
+	u32 val;
+
+	do {
+		smsc95xx_read_reg(dev, MII_ADDR, &val);
+		if (!(val & MII_BUSY_))
+			return 0;
+	} while (!time_after(jiffies, start_time + HZ));
+
+	return -EIO;
+}
+
+static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx)
+{
+	struct usbnet *dev = netdev_priv(netdev);
+	u32 val, addr;
+
+	mutex_lock(&dev->phy_mutex);
+
+	/* confirm MII not busy */
+	if (smsc95xx_phy_wait_not_busy(dev)) {
+		devwarn(dev, "MII is busy in smsc95xx_mdio_read");
+		mutex_unlock(&dev->phy_mutex);
+		return -EIO;
+	}
+
+	/* set the address, index & direction (read from PHY) */
+	phy_id &= dev->mii.phy_id_mask;
+	idx &= dev->mii.reg_num_mask;
+	addr = (phy_id << 11) | (idx << 6) | MII_READ_;
+	smsc95xx_write_reg(dev, MII_ADDR, addr);
+
+	if (smsc95xx_phy_wait_not_busy(dev)) {
+		devwarn(dev, "Timed out reading MII reg %02X", idx);
+		mutex_unlock(&dev->phy_mutex);
+		return -EIO;
+	}
+
+	smsc95xx_read_reg(dev, MII_DATA, &val);
+
+	mutex_unlock(&dev->phy_mutex);
+
+	return (u16)(val & 0xFFFF);
+}
+
+static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx,
+				int regval)
+{
+	struct usbnet *dev = netdev_priv(netdev);
+	u32 val, addr;
+
+	mutex_lock(&dev->phy_mutex);
+
+	/* confirm MII not busy */
+	if (smsc95xx_phy_wait_not_busy(dev)) {
+		devwarn(dev, "MII is busy in smsc95xx_mdio_write");
+		mutex_unlock(&dev->phy_mutex);
+		return;
+	}
+
+	val = regval;
+	smsc95xx_write_reg(dev, MII_DATA, val);
+
+	/* set the address, index & direction (write to PHY) */
+	phy_id &= dev->mii.phy_id_mask;
+	idx &= dev->mii.reg_num_mask;
+	addr = (phy_id << 11) | (idx << 6) | MII_WRITE_;
+	smsc95xx_write_reg(dev, MII_ADDR, addr);
+
+	if (smsc95xx_phy_wait_not_busy(dev))
+		devwarn(dev, "Timed out writing MII reg %02X", idx);
+
+	mutex_unlock(&dev->phy_mutex);
+}
+
+static int smsc95xx_wait_eeprom(struct usbnet *dev)
+{
+	unsigned long start_time = jiffies;
+	u32 val;
+
+	do {
+		smsc95xx_read_reg(dev, E2P_CMD, &val);
+		if (!(val & E2P_CMD_BUSY_) || (val & E2P_CMD_TIMEOUT_))
+			break;
+		udelay(40);
+	} while (!time_after(jiffies, start_time + HZ));
+
+	if (val & (E2P_CMD_TIMEOUT_ | E2P_CMD_BUSY_)) {
+		devwarn(dev, "EEPROM read operation timeout");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int smsc95xx_eeprom_confirm_not_busy(struct usbnet *dev)
+{
+	unsigned long start_time = jiffies;
+	u32 val;
+
+	do {
+		smsc95xx_read_reg(dev, E2P_CMD, &val);
+
+		if (!(val & E2P_CMD_LOADED_)) {
+			devwarn(dev, "No EEPROM present");
+			return -EIO;
+		}
+
+		if (!(val & E2P_CMD_BUSY_))
+			return 0;
+
+		udelay(40);
+	} while (!time_after(jiffies, start_time + HZ));
+
+	devwarn(dev, "EEPROM is busy");
+	return -EIO;
+}
+
+static int smsc95xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length,
+				u8 *data)
+{
+	u32 val;
+	int i, ret;
+
+	BUG_ON(!dev);
+	BUG_ON(!data);
+
+	ret = smsc95xx_eeprom_confirm_not_busy(dev);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < length; i++) {
+		val = E2P_CMD_BUSY_ | E2P_CMD_READ_ | (offset & E2P_CMD_ADDR_);
+		smsc95xx_write_reg(dev, E2P_CMD, val);
+
+		ret = smsc95xx_wait_eeprom(dev);
+		if (ret < 0)
+			return ret;
+
+		smsc95xx_read_reg(dev, E2P_DATA, &val);
+
+		data[i] = val & 0xFF;
+		offset++;
+	}
+
+	return 0;
+}
+
+static int smsc95xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length,
+				 u8 *data)
+{
+	u32 val;
+	int i, ret;
+
+	BUG_ON(!dev);
+	BUG_ON(!data);
+
+	ret = smsc95xx_eeprom_confirm_not_busy(dev);
+	if (ret)
+		return ret;
+
+	/* Issue write/erase enable command */
+	val = E2P_CMD_BUSY_ | E2P_CMD_EWEN_;
+	smsc95xx_write_reg(dev, E2P_CMD, val);
+
+	ret = smsc95xx_wait_eeprom(dev);
+	if (ret < 0)
+		return ret;
+
+	for (i = 0; i < length; i++) {
+
+		/* Fill data register */
+		val = data[i];
+		smsc95xx_write_reg(dev, E2P_DATA, val);
+
+		/* Send "write" command */
+		val = E2P_CMD_BUSY_ | E2P_CMD_WRITE_ | (offset & E2P_CMD_ADDR_);
+		smsc95xx_write_reg(dev, E2P_CMD, val);
+
+		ret = smsc95xx_wait_eeprom(dev);
+		if (ret < 0)
+			return ret;
+
+		offset++;
+	}
+
+	return 0;
+}
+
+static void smsc95xx_async_cmd_callback(struct urb *urb, struct pt_regs *regs)
+{
+	struct usb_context *usb_context = urb->context;
+	struct usbnet *dev = usb_context->dev;
+
+	if (urb->status < 0)
+		devwarn(dev, "async callback failed with %d", urb->status);
+
+	complete(&usb_context->notify);
+
+	kfree(usb_context);
+	usb_free_urb(urb);
+}
+
+static int smsc95xx_write_reg_async(struct usbnet *dev, u16 index, u32 *data)
+{
+	struct usb_context *usb_context;
+	int status;
+	struct urb *urb;
+	const u16 size = 4;
+
+	urb = usb_alloc_urb(0, GFP_ATOMIC);
+	if (!urb) {
+		devwarn(dev, "Error allocating URB");
+		return -ENOMEM;
+	}
+
+	usb_context = kmalloc(sizeof(struct usb_context), GFP_ATOMIC);
+	if (usb_context == NULL) {
+		devwarn(dev, "Error allocating control msg");
+		usb_free_urb(urb);
+		return -ENOMEM;
+	}
+
+	usb_context->req.bRequestType =
+		USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
+	usb_context->req.bRequest = USB_VENDOR_REQUEST_WRITE_REGISTER;
+	usb_context->req.wValue = 00;
+	usb_context->req.wIndex = cpu_to_le16(index);
+	usb_context->req.wLength = cpu_to_le16(size);
+	init_completion(&usb_context->notify);
+
+	usb_fill_control_urb(urb, dev->udev, usb_sndctrlpipe(dev->udev, 0),
+		(void *)&usb_context->req, data, size,
+		(usb_complete_t)smsc95xx_async_cmd_callback,
+		(void *)usb_context);
+
+	status = usb_submit_urb(urb, GFP_ATOMIC);
+	if (status < 0) {
+		devwarn(dev, "Error submitting control msg, sts=%d", status);
+		kfree(usb_context);
+		usb_free_urb(urb);
+	}
+
+	return status;
+}
+
+/* returns hash bit number for given MAC address
+ * example:
+ * 01 00 5E 00 00 01 -> returns bit number 31 */
+static unsigned int smsc95xx_hash(char addr[ETH_ALEN])
+{
+	return (ether_crc(ETH_ALEN, addr) >> 26) & 0x3f;
+}
+
+static void smsc95xx_set_multicast(struct net_device *netdev)
+{
+	struct usbnet *dev = netdev_priv(netdev);
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+	u32 hash_hi = 0;
+	u32 hash_lo = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+
+	if (dev->net->flags & IFF_PROMISC) {
+		if (netif_msg_drv(dev))
+			devdbg(dev, "promiscuous mode enabled");
+		pdata->mac_cr |= MAC_CR_PRMS_;
+		pdata->mac_cr &= ~(MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
+	} else if (dev->net->flags & IFF_ALLMULTI) {
+		if (netif_msg_drv(dev))
+			devdbg(dev, "receive all multicast enabled");
+		pdata->mac_cr |= MAC_CR_MCPAS_;
+		pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_HPFILT_);
+	} else if (dev->net->mc_count > 0) {
+		struct dev_mc_list *mc_list = dev->net->mc_list;
+		int count = 0;
+
+		pdata->mac_cr |= MAC_CR_HPFILT_;
+		pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
+
+		while (mc_list) {
+			count++;
+			if (mc_list->dmi_addrlen == ETH_ALEN) {
+				u32 bitnum = smsc95xx_hash(mc_list->dmi_addr);
+				u32 mask = 0x01 << (bitnum & 0x1F);
+				if (bitnum & 0x20)
+					hash_hi |= mask;
+				else
+					hash_lo |= mask;
+			} else {
+				devwarn(dev, "dmi_addrlen != 6");
+			}
+			mc_list = mc_list->next;
+		}
+
+		if (count != ((u32)dev->net->mc_count))
+			devwarn(dev, "mc_count != dev->mc_count");
+
+		if (netif_msg_drv(dev))
+			devdbg(dev, "HASHH=0x%08X, HASHL=0x%08X", hash_hi,
+				hash_lo);
+	} else {
+		if (netif_msg_drv(dev))
+			devdbg(dev, "receive own packets only");
+		pdata->mac_cr &=
+			~(MAC_CR_PRMS_ | MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
+	}
+
+	spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+	/* Initiate async writes, as we can't wait for completion here */
+	smsc95xx_write_reg_async(dev, HASHH, &hash_hi);
+	smsc95xx_write_reg_async(dev, HASHL, &hash_lo);
+	smsc95xx_write_reg_async(dev, MAC_CR, &pdata->mac_cr);
+}
+
+static u8 smsc95xx_resolve_flowctrl_fulldplx(u16 lcladv, u16 rmtadv)
+{
+	u8 cap = 0;
+
+	if (lcladv & ADVERTISE_PAUSE_CAP) {
+		if (lcladv & ADVERTISE_PAUSE_ASYM) {
+			if (rmtadv & LPA_PAUSE_CAP)
+				cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
+			else if (rmtadv & LPA_PAUSE_ASYM)
+				cap = FLOW_CTRL_RX;
+		} else {
+			if (rmtadv & LPA_PAUSE_CAP)
+				cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
+		}
+	} else if (lcladv & ADVERTISE_PAUSE_ASYM) {
+		if ((rmtadv & LPA_PAUSE_CAP) && (rmtadv & LPA_PAUSE_ASYM))
+			cap = FLOW_CTRL_TX;
+	}
+
+	return cap;
+}
+
+static void smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
+					    u16 lcladv, u16 rmtadv)
+{
+	u32 flow, afc_cfg = 0;
+
+	int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg);
+	if (ret < 0) {
+		devwarn(dev, "error reading AFC_CFG");
+		return;
+	}
+
+	if (duplex == DUPLEX_FULL) {
+		u8 cap = smsc95xx_resolve_flowctrl_fulldplx(lcladv, rmtadv);
+
+		if (cap & FLOW_CTRL_RX)
+			flow = 0xFFFF0002;
+		else
+			flow = 0;
+
+		if (cap & FLOW_CTRL_TX)
+			afc_cfg |= 0xF;
+		else
+			afc_cfg &= ~0xF;
+
+		if (netif_msg_link(dev))
+			devdbg(dev, "rx pause %s, tx pause %s",
+				(cap & FLOW_CTRL_RX ? "enabled" : "disabled"),
+				(cap & FLOW_CTRL_TX ? "enabled" : "disabled"));
+	} else {
+		if (netif_msg_link(dev))
+			devdbg(dev, "half duplex");
+		flow = 0;
+		afc_cfg |= 0xF;
+	}
+
+	smsc95xx_write_reg(dev, FLOW, flow);
+	smsc95xx_write_reg(dev,	AFC_CFG, afc_cfg);
+}
+
+static int smsc95xx_link_reset(struct usbnet *dev)
+{
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+	struct mii_if_info *mii = &dev->mii;
+	struct ethtool_cmd ecmd;
+	unsigned long flags;
+	u16 lcladv, rmtadv;
+	u32 intdata;
+
+	/* clear interrupt status */
+	smsc95xx_mdio_read(dev->net, mii->phy_id, PHY_INT_SRC);
+	intdata = 0xFFFFFFFF;
+	smsc95xx_write_reg(dev, INT_STS, intdata);
+
+	mii_check_media(mii, 1, 1);
+	mii_ethtool_gset(&dev->mii, &ecmd);
+	lcladv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_ADVERTISE);
+	rmtadv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_LPA);
+
+	if (netif_msg_link(dev))
+		devdbg(dev, "speed: %d duplex: %d lcladv: %04x rmtadv: %04x",
+			ecmd.speed, ecmd.duplex, lcladv, rmtadv);
+
+	spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+	if (ecmd.duplex != DUPLEX_FULL) {
+		pdata->mac_cr &= ~MAC_CR_FDPX_;
+		pdata->mac_cr |= MAC_CR_RCVOWN_;
+	} else {
+		pdata->mac_cr &= ~MAC_CR_RCVOWN_;
+		pdata->mac_cr |= MAC_CR_FDPX_;
+	}
+	spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+	smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+
+	smsc95xx_phy_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv);
+
+	return 0;
+}
+
+static void smsc95xx_status(struct usbnet *dev, struct urb *urb)
+{
+	u32 intdata;
+
+	if (urb->actual_length != 4) {
+		devwarn(dev, "unexpected urb length %d", urb->actual_length);
+		return;
+	}
+
+	memcpy(&intdata, urb->transfer_buffer, 4);
+	le32_to_cpus(&intdata);
+
+	if (netif_msg_link(dev))
+		devdbg(dev, "intdata: 0x%08X", intdata);
+
+	if (intdata & INT_ENP_PHY_INT_)
+		usbnet_defer_kevent(dev, EVENT_LINK_RESET);
+	else
+		devwarn(dev, "unexpected interrupt, intdata=0x%08X", intdata);
+}
+
+/* Enable or disable Rx checksum offload engine */
+static int smsc95xx_set_rx_csum(struct usbnet *dev, bool enable)
+{
+	u32 read_buf;
+	int ret = smsc95xx_read_reg(dev, COE_CR, &read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to read COE_CR: %d", ret);
+		return ret;
+	}
+
+	if (enable)
+		read_buf |= Rx_COE_EN_;
+	else
+		read_buf &= ~Rx_COE_EN_;
+
+	ret = smsc95xx_write_reg(dev, COE_CR, read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write COE_CR: %d", ret);
+		return ret;
+	}
+
+	if (netif_msg_hw(dev))
+		devdbg(dev, "COE_CR = 0x%08x", read_buf);
+	return 0;
+}
+
+static int smsc95xx_ethtool_get_eeprom_len(struct net_device *net)
+{
+	return MAX_EEPROM_SIZE;
+}
+
+static int smsc95xx_ethtool_get_eeprom(struct net_device *netdev,
+				       struct ethtool_eeprom *ee, u8 *data)
+{
+	struct usbnet *dev = netdev_priv(netdev);
+
+	ee->magic = LAN95XX_EEPROM_MAGIC;
+
+	return smsc95xx_read_eeprom(dev, ee->offset, ee->len, data);
+}
+
+static int smsc95xx_ethtool_set_eeprom(struct net_device *netdev,
+				       struct ethtool_eeprom *ee, u8 *data)
+{
+	struct usbnet *dev = netdev_priv(netdev);
+
+	if (ee->magic != LAN95XX_EEPROM_MAGIC) {
+		devwarn(dev, "EEPROM: magic value mismatch, magic = 0x%x",
+			ee->magic);
+		return -EINVAL;
+	}
+
+	return smsc95xx_write_eeprom(dev, ee->offset, ee->len, data);
+}
+
+static u32 smsc95xx_ethtool_get_rx_csum(struct net_device *netdev)
+{
+	struct usbnet *dev = netdev_priv(netdev);
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+
+	return pdata->use_rx_csum;
+}
+
+static int smsc95xx_ethtool_set_rx_csum(struct net_device *netdev, u32 val)
+{
+	struct usbnet *dev = netdev_priv(netdev);
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+
+	pdata->use_rx_csum = !!val;
+
+	return smsc95xx_set_rx_csum(dev, pdata->use_rx_csum);
+}
+
+static struct ethtool_ops smsc95xx_ethtool_ops = {
+	.get_link	= usbnet_get_link,
+	.nway_reset	= usbnet_nway_reset,
+	.get_drvinfo	= usbnet_get_drvinfo,
+	.get_msglevel	= usbnet_get_msglevel,
+	.set_msglevel	= usbnet_set_msglevel,
+	.get_settings	= usbnet_get_settings,
+	.set_settings	= usbnet_set_settings,
+	.get_eeprom_len	= smsc95xx_ethtool_get_eeprom_len,
+	.get_eeprom	= smsc95xx_ethtool_get_eeprom,
+	.set_eeprom	= smsc95xx_ethtool_set_eeprom,
+	.get_rx_csum	= smsc95xx_ethtool_get_rx_csum,
+	.set_rx_csum	= smsc95xx_ethtool_set_rx_csum,
+};
+
+static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
+{
+	struct usbnet *dev = netdev_priv(netdev);
+
+	if (!netif_running(netdev))
+		return -EINVAL;
+
+	return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+}
+
+static void smsc95xx_init_mac_address(struct usbnet *dev)
+{
+	/* try reading mac address from EEPROM */
+	if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
+			dev->net->dev_addr) == 0) {
+		if (is_valid_ether_addr(dev->net->dev_addr)) {
+			/* eeprom values are valid so use them */
+			if (netif_msg_ifup(dev))
+				devdbg(dev, "MAC address read from EEPROM");
+			return;
+		}
+	}
+
+	/* no eeprom, or eeprom values are invalid. generate random MAC */
+	random_ether_addr(dev->net->dev_addr);
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "MAC address set to random_ether_addr");
+}
+
+static int smsc95xx_set_mac_address(struct usbnet *dev)
+{
+	u32 addr_lo = dev->net->dev_addr[0] | dev->net->dev_addr[1] << 8 |
+		dev->net->dev_addr[2] << 16 | dev->net->dev_addr[3] << 24;
+	u32 addr_hi = dev->net->dev_addr[4] | dev->net->dev_addr[5] << 8;
+	int ret;
+
+	ret = smsc95xx_write_reg(dev, ADDRL, addr_lo);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write ADDRL: %d", ret);
+		return ret;
+	}
+
+	ret = smsc95xx_write_reg(dev, ADDRH, addr_hi);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write ADDRH: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/* starts the TX path */
+static void smsc95xx_start_tx_path(struct usbnet *dev)
+{
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+	unsigned long flags;
+	u32 reg_val;
+
+	/* Enable Tx at MAC */
+	spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+	pdata->mac_cr |= MAC_CR_TXEN_;
+	spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+	smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+
+	/* Enable Tx at SCSRs */
+	reg_val = TX_CFG_ON_;
+	smsc95xx_write_reg(dev, TX_CFG, reg_val);
+}
+
+/* Starts the Receive path */
+static void smsc95xx_start_rx_path(struct usbnet *dev)
+{
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+	pdata->mac_cr |= MAC_CR_RXEN_;
+	spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+	smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+}
+
+static int smsc95xx_phy_initialize(struct usbnet *dev)
+{
+	/* Initialize MII structure */
+	dev->mii.dev = dev->net;
+	dev->mii.mdio_read = smsc95xx_mdio_read;
+	dev->mii.mdio_write = smsc95xx_mdio_write;
+	dev->mii.phy_id_mask = 0x1f;
+	dev->mii.reg_num_mask = 0x1f;
+	dev->mii.phy_id = SMSC95XX_INTERNAL_PHY_ID;
+
+	smsc95xx_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
+	smsc95xx_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
+		ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP |
+		ADVERTISE_PAUSE_ASYM);
+
+	/* read to clear */
+	smsc95xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC);
+
+	smsc95xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK,
+		PHY_INT_MASK_DEFAULT_);
+	mii_nway_restart(&dev->mii);
+
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "phy initialised succesfully");
+	return 0;
+}
+
+static int smsc95xx_reset(struct usbnet *dev)
+{
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+	u32 read_buf, write_buf, burst_cap;
+	int ret = 0, timeout;
+	DECLARE_MAC_BUF(mac);
+
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "entering smsc95xx_reset");
+
+	write_buf = HW_CFG_LRST_;
+	ret = smsc95xx_write_reg(dev, HW_CFG, write_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write HW_CFG_LRST_ bit in HW_CFG "
+			"register, ret = %d", ret);
+		return ret;
+	}
+
+	timeout = 0;
+	do {
+		ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+		if (ret < 0) {
+			devwarn(dev, "Failed to read HW_CFG: %d", ret);
+			return ret;
+		}
+		msleep(10);
+		timeout++;
+	} while ((read_buf & HW_CFG_LRST_) && (timeout < 100));
+
+	if (timeout >= 100) {
+		devwarn(dev, "timeout waiting for completion of Lite Reset");
+		return ret;
+	}
+
+	write_buf = PM_CTL_PHY_RST_;
+	ret = smsc95xx_write_reg(dev, PM_CTRL, write_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write PM_CTRL: %d", ret);
+		return ret;
+	}
+
+	timeout = 0;
+	do {
+		ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf);
+		if (ret < 0) {
+			devwarn(dev, "Failed to read PM_CTRL: %d", ret);
+			return ret;
+		}
+		msleep(10);
+		timeout++;
+	} while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100));
+
+	if (timeout >= 100) {
+		devwarn(dev, "timeout waiting for PHY Reset");
+		return ret;
+	}
+
+	smsc95xx_init_mac_address(dev);
+
+	ret = smsc95xx_set_mac_address(dev);
+	if (ret < 0)
+		return ret;
+
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "MAC Address: %s",
+			print_mac(mac, dev->net->dev_addr));
+
+	ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to read HW_CFG: %d", ret);
+		return ret;
+	}
+
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "Read Value from HW_CFG : 0x%08x", read_buf);
+
+	read_buf |= HW_CFG_BIR_;
+
+	ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write HW_CFG_BIR_ bit in HW_CFG "
+			"register, ret = %d", ret);
+		return ret;
+	}
+
+	ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to read HW_CFG: %d", ret);
+		return ret;
+	}
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "Read Value from HW_CFG after writing "
+			"HW_CFG_BIR_: 0x%08x", read_buf);
+
+	if (!turbo_mode) {
+		burst_cap = 0;
+		dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
+	} else if (dev->udev->speed == USB_SPEED_HIGH) {
+		burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
+		dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
+	} else {
+		burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
+		dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
+	}
+
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "rx_urb_size=%ld", (ulong)dev->rx_urb_size);
+
+	ret = smsc95xx_write_reg(dev, BURST_CAP, burst_cap);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write BURST_CAP: %d", ret);
+		return ret;
+	}
+
+	ret = smsc95xx_read_reg(dev, BURST_CAP, &read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to read BURST_CAP: %d", ret);
+		return ret;
+	}
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "Read Value from BURST_CAP after writing: 0x%08x",
+			read_buf);
+
+	read_buf = DEFAULT_BULK_IN_DELAY;
+	ret = smsc95xx_write_reg(dev, BULK_IN_DLY, read_buf);
+	if (ret < 0) {
+		devwarn(dev, "ret = %d", ret);
+		return ret;
+	}
+
+	ret = smsc95xx_read_reg(dev, BULK_IN_DLY, &read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to read BULK_IN_DLY: %d", ret);
+		return ret;
+	}
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "Read Value from BULK_IN_DLY after writing: "
+			"0x%08x", read_buf);
+
+	ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to read HW_CFG: %d", ret);
+		return ret;
+	}
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "Read Value from HW_CFG: 0x%08x", read_buf);
+
+	if (turbo_mode)
+		read_buf |= (HW_CFG_MEF_ | HW_CFG_BCE_);
+
+	read_buf &= ~HW_CFG_RXDOFF_;
+
+	/* set Rx data offset=2, Make IP header aligns on word boundary. */
+	read_buf |= NET_IP_ALIGN << 9;
+
+	ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write HW_CFG register, ret=%d", ret);
+		return ret;
+	}
+
+	ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to read HW_CFG: %d", ret);
+		return ret;
+	}
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "Read Value from HW_CFG after writing: 0x%08x",
+			read_buf);
+
+	write_buf = 0xFFFFFFFF;
+	ret = smsc95xx_write_reg(dev, INT_STS, write_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write INT_STS register, ret=%d", ret);
+		return ret;
+	}
+
+	ret = smsc95xx_read_reg(dev, ID_REV, &read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to read ID_REV: %d", ret);
+		return ret;
+	}
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "ID_REV = 0x%08x", read_buf);
+
+	/* Init Tx */
+	write_buf = 0;
+	ret = smsc95xx_write_reg(dev, FLOW, write_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write FLOW: %d", ret);
+		return ret;
+	}
+
+	read_buf = AFC_CFG_DEFAULT;
+	ret = smsc95xx_write_reg(dev, AFC_CFG, read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write AFC_CFG: %d", ret);
+		return ret;
+	}
+
+	/* Don't need mac_cr_lock during initialisation */
+	ret = smsc95xx_read_reg(dev, MAC_CR, &pdata->mac_cr);
+	if (ret < 0) {
+		devwarn(dev, "Failed to read MAC_CR: %d", ret);
+		return ret;
+	}
+
+	/* Init Rx */
+	/* Set Vlan */
+	write_buf = (u32)ETH_P_8021Q;
+	ret = smsc95xx_write_reg(dev, VLAN1, write_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write VAN1: %d", ret);
+		return ret;
+	}
+
+	/* Enable or disable Rx checksum offload engine */
+	ret = smsc95xx_set_rx_csum(dev, pdata->use_rx_csum);
+	if (ret < 0) {
+		devwarn(dev, "Failed to set Rx csum offload: %d", ret);
+		return ret;
+	}
+
+	smsc95xx_set_multicast(dev->net);
+
+	if (smsc95xx_phy_initialize(dev) < 0)
+		return -EIO;
+
+	ret = smsc95xx_read_reg(dev, INT_EP_CTL, &read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to read INT_EP_CTL: %d", ret);
+		return ret;
+	}
+
+	/* enable PHY interrupts */
+	read_buf |= INT_EP_CTL_PHY_INT_;
+
+	ret = smsc95xx_write_reg(dev, INT_EP_CTL, read_buf);
+	if (ret < 0) {
+		devwarn(dev, "Failed to write INT_EP_CTL: %d", ret);
+		return ret;
+	}
+
+	smsc95xx_start_tx_path(dev);
+	smsc95xx_start_rx_path(dev);
+
+	if (netif_msg_ifup(dev))
+		devdbg(dev, "smsc95xx_reset, return 0");
+	return 0;
+}
+
+static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+	struct smsc95xx_priv *pdata = NULL;
+	int ret;
+
+	printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n");
+
+	ret = usbnet_get_endpoints(dev, intf);
+	if (ret < 0) {
+		devwarn(dev, "usbnet_get_endpoints failed: %d", ret);
+		return ret;
+	}
+
+	dev->data[0] = (unsigned long)kzalloc(sizeof(struct smsc95xx_priv),
+		GFP_KERNEL);
+
+	pdata = (struct smsc95xx_priv *)(dev->data[0]);
+	if (!pdata) {
+		devwarn(dev, "Unable to allocate struct smsc95xx_priv");
+		return -ENOMEM;
+	}
+
+	spin_lock_init(&pdata->mac_cr_lock);
+
+	pdata->use_rx_csum = DEFAULT_RX_CSUM_ENABLE;
+
+	/* Init all registers */
+	ret = smsc95xx_reset(dev);
+
+	dev->net->do_ioctl = smsc95xx_ioctl;
+	dev->net->ethtool_ops = &smsc95xx_ethtool_ops;
+	dev->net->set_multicast_list = smsc95xx_set_multicast;
+	dev->net->flags |= IFF_MULTICAST;
+	dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD;
+	return 0;
+}
+
+static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+	if (pdata) {
+		if (netif_msg_ifdown(dev))
+			devdbg(dev, "free pdata");
+		kfree(pdata);
+		pdata = NULL;
+		dev->data[0] = 0;
+	}
+}
+
+static void smsc95xx_rx_csum_offload(struct sk_buff *skb)
+{
+	skb->csum = *(u16 *)(skb_tail_pointer(skb) - 2);
+	skb->ip_summed = CHECKSUM_COMPLETE;
+	skb_trim(skb, skb->len - 2);
+}
+
+static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+
+	while (skb->len > 0) {
+		u32 header, align_count;
+		struct sk_buff *ax_skb;
+		unsigned char *packet;
+		u16 size;
+
+		memcpy(&header, skb->data, sizeof(header));
+		le32_to_cpus(&header);
+		skb_pull(skb, 4 + NET_IP_ALIGN);
+		packet = skb->data;
+
+		/* get the packet length */
+		size = (u16)((header & RX_STS_FL_) >> 16);
+		align_count = (4 - ((size + NET_IP_ALIGN) % 4)) % 4;
+
+		if (unlikely(header & RX_STS_ES_)) {
+			if (netif_msg_rx_err(dev))
+				devdbg(dev, "Error header=0x%08x", header);
+			dev->stats.rx_errors++;
+			dev->stats.rx_dropped++;
+
+			if (header & RX_STS_CRC_) {
+				dev->stats.rx_crc_errors++;
+			} else {
+				if (header & (RX_STS_TL_ | RX_STS_RF_))
+					dev->stats.rx_frame_errors++;
+
+				if ((header & RX_STS_LE_) &&
+					(!(header & RX_STS_FT_)))
+					dev->stats.rx_length_errors++;
+			}
+		} else {
+			/* ETH_FRAME_LEN + 4(CRC) + 2(COE) + 4(Vlan) */
+			if (unlikely(size > (ETH_FRAME_LEN + 12))) {
+				if (netif_msg_rx_err(dev))
+					devdbg(dev, "size err header=0x%08x",
+						header);
+				return 0;
+			}
+
+			/* last frame in this batch */
+			if (skb->len == size) {
+				if (pdata->use_rx_csum)
+					smsc95xx_rx_csum_offload(skb);
+
+				skb->truesize = size + sizeof(struct sk_buff);
+
+				return 1;
+			}
+
+			ax_skb = skb_clone(skb, GFP_ATOMIC);
+			if (unlikely(!ax_skb)) {
+				devwarn(dev, "Error allocating skb");
+				return 0;
+			}
+
+			ax_skb->len = size;
+			ax_skb->data = packet;
+			skb_set_tail_pointer(ax_skb, size);
+
+			if (pdata->use_rx_csum)
+				smsc95xx_rx_csum_offload(ax_skb);
+
+			ax_skb->truesize = size + sizeof(struct sk_buff);
+
+			usbnet_skb_return(dev, ax_skb);
+		}
+
+		skb_pull(skb, size);
+
+		/* padding bytes before the next frame starts */
+		if (skb->len)
+			skb_pull(skb, align_count);
+	}
+
+	if (unlikely(skb->len < 0)) {
+		devwarn(dev, "invalid rx length<0 %d", skb->len);
+		return 0;
+	}
+
+	return 1;
+}
+
+static struct sk_buff *smsc95xx_tx_fixup(struct usbnet *dev,
+					 struct sk_buff *skb, gfp_t flags)
+{
+	u32 tx_cmd_a, tx_cmd_b;
+
+	if (skb_headroom(skb) < SMSC95XX_TX_OVERHEAD) {
+		struct sk_buff *skb2 = skb_copy_expand(skb,
+			SMSC95XX_TX_OVERHEAD, 0, flags);
+		dev_kfree_skb_any(skb);
+		skb = skb2;
+		if (!skb)
+			return NULL;
+	}
+
+	skb_push(skb, 4);
+	tx_cmd_b = (u32)(skb->len - 4);
+	cpu_to_le32s(&tx_cmd_b);
+	memcpy(skb->data, &tx_cmd_b, 4);
+
+	skb_push(skb, 4);
+	tx_cmd_a = (u32)(skb->len - 8) | TX_CMD_A_FIRST_SEG_ |
+		TX_CMD_A_LAST_SEG_;
+	cpu_to_le32s(&tx_cmd_a);
+	memcpy(skb->data, &tx_cmd_a, 4);
+
+	return skb;
+}
+
+static const struct driver_info smsc95xx_info = {
+	.description	= "smsc95xx USB 2.0 Ethernet",
+	.bind		= smsc95xx_bind,
+	.unbind		= smsc95xx_unbind,
+	.link_reset	= smsc95xx_link_reset,
+	.reset		= smsc95xx_reset,
+	.rx_fixup	= smsc95xx_rx_fixup,
+	.tx_fixup	= smsc95xx_tx_fixup,
+	.status		= smsc95xx_status,
+	.flags		= FLAG_ETHER,
+};
+
+static const struct usb_device_id products[] = {
+	{
+		/* SMSC9500 USB Ethernet Device */
+		USB_DEVICE(0x0424, 0x9500),
+		.driver_info = (unsigned long) &smsc95xx_info,
+	},
+	{ },		/* END */
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver smsc95xx_driver = {
+	.name		= "smsc95xx",
+	.id_table	= products,
+	.probe		= usbnet_probe,
+	.suspend	= usbnet_suspend,
+	.resume		= usbnet_resume,
+	.disconnect	= usbnet_disconnect,
+};
+
+static int __init smsc95xx_init(void)
+{
+	return usb_register(&smsc95xx_driver);
+}
+module_init(smsc95xx_init);
+
+static void __exit smsc95xx_exit(void)
+{
+	usb_deregister(&smsc95xx_driver);
+}
+module_exit(smsc95xx_exit);
+
+MODULE_AUTHOR("Nancy Lin");
+MODULE_AUTHOR("Steve Glendinning <steve.glendinning@smsc.com>");
+MODULE_DESCRIPTION("SMSC95XX USB 2.0 Ethernet Devices");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/smsc95xx.h b/drivers/net/usb/smsc95xx.h
new file mode 100644
index 00000000000..66b5c84f302
--- /dev/null
+++ b/drivers/net/usb/smsc95xx.h
@@ -0,0 +1,253 @@
+ /***************************************************************************
+ *
+ * Copyright (C) 2007-2008 SMSC
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ *****************************************************************************/
+
+#ifndef _SMSC95XX_H
+#define _SMSC95XX_H
+
+/* Tx command words */
+#define TX_CMD_A_DATA_OFFSET_		(0x001F0000)
+#define TX_CMD_A_FIRST_SEG_		(0x00002000)
+#define TX_CMD_A_LAST_SEG_		(0x00001000)
+#define TX_CMD_A_BUF_SIZE_		(0x000007FF)
+
+#define TX_CMD_B_CSUM_ENABLE		(0x00004000)
+#define TX_CMD_B_ADD_CRC_DISABLE_	(0x00002000)
+#define TX_CMD_B_DISABLE_PADDING_	(0x00001000)
+#define TX_CMD_B_PKT_BYTE_LENGTH_	(0x000007FF)
+
+/* Rx status word */
+#define RX_STS_FF_			(0x40000000)	/* Filter Fail */
+#define RX_STS_FL_			(0x3FFF0000)	/* Frame Length */
+#define RX_STS_ES_			(0x00008000)	/* Error Summary */
+#define RX_STS_BF_			(0x00002000)	/* Broadcast Frame */
+#define RX_STS_LE_			(0x00001000)	/* Length Error */
+#define RX_STS_RF_			(0x00000800)	/* Runt Frame */
+#define RX_STS_MF_			(0x00000400)	/* Multicast Frame */
+#define RX_STS_TL_			(0x00000080)	/* Frame too long */
+#define RX_STS_CS_			(0x00000040)	/* Collision Seen */
+#define RX_STS_FT_			(0x00000020)	/* Frame Type */
+#define RX_STS_RW_			(0x00000010)	/* Receive Watchdog */
+#define RX_STS_ME_			(0x00000008)	/* Mii Error */
+#define RX_STS_DB_			(0x00000004)	/* Dribbling */
+#define RX_STS_CRC_			(0x00000002)	/* CRC Error */
+
+/* SCSRs */
+#define ID_REV				(0x00)
+#define ID_REV_CHIP_ID_MASK_		(0xFFFF0000)
+#define ID_REV_CHIP_REV_MASK_		(0x0000FFFF)
+#define ID_REV_CHIP_ID_9500_		(0x9500)
+
+#define INT_STS				(0x08)
+#define INT_STS_TX_STOP_		(0x00020000)
+#define INT_STS_RX_STOP_		(0x00010000)
+#define INT_STS_PHY_INT_		(0x00008000)
+#define INT_STS_TXE_			(0x00004000)
+#define INT_STS_TDFU_			(0x00002000)
+#define INT_STS_TDFO_			(0x00001000)
+#define INT_STS_RXDF_			(0x00000800)
+#define INT_STS_GPIOS_			(0x000007FF)
+
+#define RX_CFG				(0x0C)
+#define RX_FIFO_FLUSH_			(0x00000001)
+
+#define TX_CFG				(0x10)
+#define TX_CFG_ON_			(0x00000004)
+#define TX_CFG_STOP_			(0x00000002)
+#define TX_CFG_FIFO_FLUSH_		(0x00000001)
+
+#define HW_CFG				(0x14)
+#define HW_CFG_BIR_			(0x00001000)
+#define HW_CFG_LEDB_			(0x00000800)
+#define HW_CFG_RXDOFF_			(0x00000600)
+#define HW_CFG_DRP_			(0x00000040)
+#define HW_CFG_MEF_			(0x00000020)
+#define HW_CFG_LRST_			(0x00000008)
+#define HW_CFG_PSEL_			(0x00000004)
+#define HW_CFG_BCE_			(0x00000002)
+#define HW_CFG_SRST_			(0x00000001)
+
+#define PM_CTRL				(0x20)
+#define PM_CTL_DEV_RDY_			(0x00000080)
+#define PM_CTL_SUS_MODE_		(0x00000060)
+#define PM_CTL_SUS_MODE_0		(0x00000000)
+#define PM_CTL_SUS_MODE_1		(0x00000020)
+#define PM_CTL_SUS_MODE_2		(0x00000060)
+#define PM_CTL_PHY_RST_			(0x00000010)
+#define PM_CTL_WOL_EN_			(0x00000008)
+#define PM_CTL_ED_EN_			(0x00000004)
+#define PM_CTL_WUPS_			(0x00000003)
+#define PM_CTL_WUPS_NO_			(0x00000000)
+#define PM_CTL_WUPS_ED_			(0x00000001)
+#define PM_CTL_WUPS_WOL_		(0x00000002)
+#define PM_CTL_WUPS_MULTI_		(0x00000003)
+
+#define LED_GPIO_CFG			(0x24)
+
+#define GPIO_CFG			(0x28)
+
+#define AFC_CFG				(0x2C)
+
+/* Hi watermark = 15.5Kb (~10 mtu pkts) */
+/* low watermark = 3k (~2 mtu pkts) */
+/* backpressure duration = ~ 350us */
+/* Apply FC on any frame. */
+#define AFC_CFG_DEFAULT			(0x00F830A1)
+
+#define E2P_CMD				(0x30)
+#define E2P_CMD_BUSY_			(0x80000000)
+#define E2P_CMD_MASK_			(0x70000000)
+#define E2P_CMD_READ_			(0x00000000)
+#define E2P_CMD_EWDS_			(0x10000000)
+#define E2P_CMD_EWEN_			(0x20000000)
+#define E2P_CMD_WRITE_			(0x30000000)
+#define E2P_CMD_WRAL_			(0x40000000)
+#define E2P_CMD_ERASE_			(0x50000000)
+#define E2P_CMD_ERAL_			(0x60000000)
+#define E2P_CMD_RELOAD_			(0x70000000)
+#define E2P_CMD_TIMEOUT_		(0x00000400)
+#define E2P_CMD_LOADED_			(0x00000200)
+#define E2P_CMD_ADDR_			(0x000001FF)
+
+#define MAX_EEPROM_SIZE			(512)
+
+#define E2P_DATA			(0x34)
+#define E2P_DATA_MASK_			(0x000000FF)
+
+#define BURST_CAP			(0x38)
+
+#define GPIO_WAKE			(0x64)
+
+#define INT_EP_CTL			(0x68)
+#define INT_EP_CTL_INTEP_		(0x80000000)
+#define INT_EP_CTL_MACRTO_		(0x00080000)
+#define INT_EP_CTL_TX_STOP_		(0x00020000)
+#define INT_EP_CTL_RX_STOP_		(0x00010000)
+#define INT_EP_CTL_PHY_INT_		(0x00008000)
+#define INT_EP_CTL_TXE_			(0x00004000)
+#define INT_EP_CTL_TDFU_		(0x00002000)
+#define INT_EP_CTL_TDFO_		(0x00001000)
+#define INT_EP_CTL_RXDF_		(0x00000800)
+#define INT_EP_CTL_GPIOS_		(0x000007FF)
+
+#define BULK_IN_DLY			(0x6C)
+
+/* MAC CSRs */
+#define MAC_CR				(0x100)
+#define MAC_CR_RXALL_			(0x80000000)
+#define MAC_CR_RCVOWN_			(0x00800000)
+#define MAC_CR_LOOPBK_			(0x00200000)
+#define MAC_CR_FDPX_			(0x00100000)
+#define MAC_CR_MCPAS_			(0x00080000)
+#define MAC_CR_PRMS_			(0x00040000)
+#define MAC_CR_INVFILT_			(0x00020000)
+#define MAC_CR_PASSBAD_			(0x00010000)
+#define MAC_CR_HFILT_			(0x00008000)
+#define MAC_CR_HPFILT_			(0x00002000)
+#define MAC_CR_LCOLL_			(0x00001000)
+#define MAC_CR_BCAST_			(0x00000800)
+#define MAC_CR_DISRTY_			(0x00000400)
+#define MAC_CR_PADSTR_			(0x00000100)
+#define MAC_CR_BOLMT_MASK		(0x000000C0)
+#define MAC_CR_DFCHK_			(0x00000020)
+#define MAC_CR_TXEN_			(0x00000008)
+#define MAC_CR_RXEN_			(0x00000004)
+
+#define ADDRH				(0x104)
+
+#define ADDRL				(0x108)
+
+#define HASHH				(0x10C)
+
+#define HASHL				(0x110)
+
+#define MII_ADDR			(0x114)
+#define MII_WRITE_			(0x02)
+#define MII_BUSY_			(0x01)
+#define MII_READ_			(0x00) /* ~of MII Write bit */
+
+#define MII_DATA			(0x118)
+
+#define FLOW				(0x11C)
+#define FLOW_FCPT_			(0xFFFF0000)
+#define FLOW_FCPASS_			(0x00000004)
+#define FLOW_FCEN_			(0x00000002)
+#define FLOW_FCBSY_			(0x00000001)
+
+#define VLAN1				(0x120)
+
+#define VLAN2				(0x124)
+
+#define WUFF				(0x128)
+
+#define WUCSR				(0x12C)
+
+#define COE_CR				(0x130)
+#define Tx_COE_EN_			(0x00010000)
+#define Rx_COE_MODE_			(0x00000002)
+#define Rx_COE_EN_			(0x00000001)
+
+/* Vendor-specific PHY Definitions */
+
+/* Mode Control/Status Register */
+#define PHY_MODE_CTRL_STS		(17)
+#define MODE_CTRL_STS_EDPWRDOWN_	((u16)0x2000)
+#define MODE_CTRL_STS_ENERGYON_		((u16)0x0002)
+
+#define SPECIAL_CTRL_STS		(27)
+#define SPECIAL_CTRL_STS_OVRRD_AMDIX_	((u16)0x8000)
+#define SPECIAL_CTRL_STS_AMDIX_ENABLE_	((u16)0x4000)
+#define SPECIAL_CTRL_STS_AMDIX_STATE_	((u16)0x2000)
+
+#define PHY_INT_SRC			(29)
+#define PHY_INT_SRC_ENERGY_ON_		((u16)0x0080)
+#define PHY_INT_SRC_ANEG_COMP_		((u16)0x0040)
+#define PHY_INT_SRC_REMOTE_FAULT_	((u16)0x0020)
+#define PHY_INT_SRC_LINK_DOWN_		((u16)0x0010)
+
+#define PHY_INT_MASK			(30)
+#define PHY_INT_MASK_ENERGY_ON_		((u16)0x0080)
+#define PHY_INT_MASK_ANEG_COMP_		((u16)0x0040)
+#define PHY_INT_MASK_REMOTE_FAULT_	((u16)0x0020)
+#define PHY_INT_MASK_LINK_DOWN_		((u16)0x0010)
+#define PHY_INT_MASK_DEFAULT_		(PHY_INT_MASK_ANEG_COMP_ | \
+					 PHY_INT_MASK_LINK_DOWN_)
+
+#define PHY_SPECIAL			(31)
+#define PHY_SPECIAL_SPD_		((u16)0x001C)
+#define PHY_SPECIAL_SPD_10HALF_		((u16)0x0004)
+#define PHY_SPECIAL_SPD_10FULL_		((u16)0x0014)
+#define PHY_SPECIAL_SPD_100HALF_	((u16)0x0008)
+#define PHY_SPECIAL_SPD_100FULL_	((u16)0x0018)
+
+/* USB Vendor Requests */
+#define USB_VENDOR_REQUEST_WRITE_REGISTER	0xA0
+#define USB_VENDOR_REQUEST_READ_REGISTER	0xA1
+#define USB_VENDOR_REQUEST_GET_STATS		0xA2
+
+/* Interrupt Endpoint status word bitfields */
+#define INT_ENP_TX_STOP_		((u32)BIT(17))
+#define INT_ENP_RX_STOP_		((u32)BIT(16))
+#define INT_ENP_PHY_INT_		((u32)BIT(15))
+#define INT_ENP_TXE_			((u32)BIT(14))
+#define INT_ENP_TDFU_			((u32)BIT(13))
+#define INT_ENP_TDFO_			((u32)BIT(12))
+#define INT_ENP_RXDF_			((u32)BIT(11))
+
+#endif /* _SMSC95XX_H */
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 8463efb9e0b..02d25c74399 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -512,14 +512,13 @@ static int unlink_urbs (struct usbnet *dev, struct sk_buff_head *q)
 	int			count = 0;
 
 	spin_lock_irqsave (&q->lock, flags);
-	for (skb = q->next; skb != (struct sk_buff *) q; skb = skbnext) {
+	skb_queue_walk_safe(q, skb, skbnext) {
 		struct skb_data		*entry;
 		struct urb		*urb;
 		int			retval;
 
 		entry = (struct skb_data *) skb->cb;
 		urb = entry->urb;
-		skbnext = skb->next;
 
 		// during some PM-driven resume scenarios,
 		// these (async) unlinks complete immediately