Reference: https://launchpad.net/bugs/140511

The Belkin bluetooth dongle unfortunately shares the vendor and device
id with the network adapter which causes lockups whenever the bluetooth
dongle is inserted.

CC: linux-usb@vger.kernel.org
Signed-off-by: Stefan Bader
Signed-off-by: Ben Collins

diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index b588c89..a84ba48 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -1285,6 +1285,21 @@ 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 +1311,12 @@ 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");


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/