diff options
Diffstat (limited to 'drivers/usb/serial/qcserial.c')
| -rw-r--r-- | drivers/usb/serial/qcserial.c | 42 |
1 files changed, 25 insertions, 17 deletions
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c index 9215f6c582c..04bb759536b 100644 --- a/drivers/usb/serial/qcserial.c +++ b/drivers/usb/serial/qcserial.c @@ -78,6 +78,8 @@ static const struct usb_device_id id_table[] = { {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */ {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ + {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */ + {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, id_table); @@ -95,6 +97,7 @@ static struct usb_driver qcdriver = { static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) { struct usb_wwan_intf_private *data; + struct usb_host_interface *intf = serial->interface->cur_altsetting; int retval = -ENODEV; __u8 nintf; __u8 ifnum; @@ -103,7 +106,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) nintf = serial->dev->actconfig->desc.bNumInterfaces; dbg("Num Interfaces = %d", nintf); - ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber; + ifnum = intf->desc.bInterfaceNumber; dbg("This Interface = %d", ifnum); data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private), @@ -116,27 +119,32 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) switch (nintf) { case 1: /* QDL mode */ - if (serial->interface->num_altsetting == 2) { - struct usb_host_interface *intf; - + /* Gobi 2000 has a single altsetting, older ones have two */ + if (serial->interface->num_altsetting == 2) intf = &serial->interface->altsetting[1]; - if (intf->desc.bNumEndpoints == 2) { - if (usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && - usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { - dbg("QDL port found"); - retval = usb_set_interface(serial->dev, ifnum, 1); - if (retval < 0) { - dev_err(&serial->dev->dev, - "Could not set interface, error %d\n", - retval); - retval = -ENODEV; - } - return retval; - } + else if (serial->interface->num_altsetting > 2) + break; + + if (intf->desc.bNumEndpoints == 2 && + usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && + usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { + dbg("QDL port found"); + + if (serial->interface->num_altsetting == 1) + return 0; + + retval = usb_set_interface(serial->dev, ifnum, 1); + if (retval < 0) { + dev_err(&serial->dev->dev, + "Could not set interface, error %d\n", + retval); + retval = -ENODEV; } + return retval; } break; + case 3: case 4: /* Composite mode */ if (ifnum == 2) { |