1 files changed, 30 insertions, 12 deletions

diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 3a0a8ca5707..fdd645c214a 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -49,6 +49,7 @@
 #include <linux/init.h>
 #include <linux/usb.h>
 #include <linux/usb/input.h>
+#include <linux/hid.h>
 
 
 #define DRIVER_VERSION		"v0.6"
@@ -101,7 +102,7 @@ struct usbtouch_usb {
 
 /* device types */
 enum {
-	DEVTPYE_DUMMY = -1,
+	DEVTYPE_IGNORE = -1,
 	DEVTYPE_EGALAX,
 	DEVTYPE_PANJIT,
 	DEVTYPE_3M,
@@ -115,8 +116,21 @@ enum {
 	DEVTYPE_GOTOP,
 };
 
+#define USB_DEVICE_HID_CLASS(vend, prod) \
+	.match_flags = USB_DEVICE_ID_MATCH_INT_CLASS \
+		| USB_DEVICE_ID_MATCH_DEVICE, \
+	.idVendor = (vend), \
+	.idProduct = (prod), \
+	.bInterfaceClass = USB_INTERFACE_CLASS_HID, \
+	.bInterfaceProtocol = USB_INTERFACE_PROTOCOL_MOUSE
+
 static struct usb_device_id usbtouch_devices[] = {
 #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
+	/* ignore the HID capable devices, handled by usbhid */
+	{USB_DEVICE_HID_CLASS(0x0eef, 0x0001), .driver_info = DEVTYPE_IGNORE},
+	{USB_DEVICE_HID_CLASS(0x0eef, 0x0002), .driver_info = DEVTYPE_IGNORE},
+
+	/* normal device IDs */
 	{USB_DEVICE(0x3823, 0x0001), .driver_info = DEVTYPE_EGALAX},
 	{USB_DEVICE(0x3823, 0x0002), .driver_info = DEVTYPE_EGALAX},
 	{USB_DEVICE(0x0123, 0x0001), .driver_info = DEVTYPE_EGALAX},
@@ -262,7 +276,7 @@ static int mtouch_init(struct usbtouch_usb *usbtouch)
 	                      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 	                      1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
 	dbg("%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d",
-	    __FUNCTION__, ret);
+	    __func__, ret);
 	if (ret < 0)
 		return ret;
 	msleep(150);
@@ -273,7 +287,7 @@ static int mtouch_init(struct usbtouch_usb *usbtouch)
 				      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 				      1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);
 		dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d",
-		    __FUNCTION__, ret);
+		    __func__, ret);
 		if (ret >= 0)
 			break;
 		if (ret != -EPIPE)
@@ -793,18 +807,18 @@ static void usbtouch_irq(struct urb *urb)
 	case -ETIME:
 		/* this urb is timing out */
 		dbg("%s - urb timed out - was the device unplugged?",
-		    __FUNCTION__);
+		    __func__);
 		return;
 	case -ECONNRESET:
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
 		dbg("%s - urb shutting down with status: %d",
-		    __FUNCTION__, urb->status);
+		    __func__, urb->status);
 		return;
 	default:
 		dbg("%s - nonzero urb status received: %d",
-		    __FUNCTION__, urb->status);
+		    __func__, urb->status);
 		goto exit;
 	}
 
@@ -814,7 +828,7 @@ exit:
 	retval = usb_submit_urb(urb, GFP_ATOMIC);
 	if (retval)
 		err("%s - usb_submit_urb failed with result: %d",
-		    __FUNCTION__, retval);
+		    __func__, retval);
 }
 
 static int usbtouch_open(struct input_dev *input)
@@ -857,6 +871,10 @@ static int usbtouch_probe(struct usb_interface *intf,
 	struct usbtouch_device_info *type;
 	int err = -ENOMEM;
 
+	/* some devices are ignored */
+	if (id->driver_info == DEVTYPE_IGNORE)
+		return -ENODEV;
+
 	interface = intf->cur_altsetting;
 	endpoint = &interface->endpoint[0].desc;
 
@@ -883,7 +901,7 @@ static int usbtouch_probe(struct usb_interface *intf,
 
 	usbtouch->irq = usb_alloc_urb(0, GFP_KERNEL);
 	if (!usbtouch->irq) {
-		dbg("%s - usb_alloc_urb failed: usbtouch->irq", __FUNCTION__);
+		dbg("%s - usb_alloc_urb failed: usbtouch->irq", __func__);
 		goto out_free_buffers;
 	}
 
@@ -939,14 +957,14 @@ static int usbtouch_probe(struct usb_interface *intf,
 	if (type->init) {
 		err = type->init(usbtouch);
 		if (err) {
-			dbg("%s - type->init() failed, err: %d", __FUNCTION__, err);
+			dbg("%s - type->init() failed, err: %d", __func__, err);
 			goto out_free_buffers;
 		}
 	}
 
 	err = input_register_device(usbtouch->input);
 	if (err) {
-		dbg("%s - input_register_device failed, err: %d", __FUNCTION__, err);
+		dbg("%s - input_register_device failed, err: %d", __func__, err);
 		goto out_free_buffers;
 	}
 
@@ -966,12 +984,12 @@ static void usbtouch_disconnect(struct usb_interface *intf)
 {
 	struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
 
-	dbg("%s - called", __FUNCTION__);
+	dbg("%s - called", __func__);
 
 	if (!usbtouch)
 		return;
 
-	dbg("%s - usbtouch is initialized, cleaning up", __FUNCTION__);
+	dbg("%s - usbtouch is initialized, cleaning up", __func__);
 	usb_set_intfdata(intf, NULL);
 	usb_kill_urb(usbtouch->irq);
 	input_unregister_device(usbtouch->input);