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pegasus: Add blacklist support to fix Belkin bluetooth dongle.

PATCH New Ben Collins 1 participant 1 message Jul 21, 2008

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Network drivers USB networking drivers USB pegasus driver
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Ben Collins

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PATCH 1/1 pegasus: Add blacklist support to fix Belkin bluetooth dongle.

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 [email protected]
Signed-off-by Stefan Bader <[email protected]>
Signed-off-by Ben Collins <[email protected]>
drivers/net/usb/pegasus.c +21 -0
index b588c89..a84ba48 100644
@@ -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");