From 12e455f905854f4f8db77fa1561626de6543e9c6 Mon Sep 17 00:00:00 2001
From: sborrill <sborrill@NetBSD.org>
Date: Tue, 20 Nov 2007 10:43:01 +0000
Subject: [PATCH] Some manufacturers use the same vendor and product id for
 different devices. We need to sanity check the DeviceClass in this case.

Currently known guilty products:
0x050d/0x0121 Belkin Bluetooth and USB2LAN

If this turns out to be more common, we could use a quirk table.
---
 sys/dev/usb/if_aue.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/sys/dev/usb/if_aue.c b/sys/dev/usb/if_aue.c
index 861aa1b90a65..c2bf680c5f0b 100644
--- a/sys/dev/usb/if_aue.c
+++ b/sys/dev/usb/if_aue.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: if_aue.c,v 1.104 2007/09/01 07:32:32 dyoung Exp $	*/
+/*	$NetBSD: if_aue.c,v 1.105 2007/11/20 10:43:01 sborrill Exp $	*/
 /*
  * Copyright (c) 1997, 1998, 1999, 2000
  *	Bill Paul <wpaul@ee.columbia.edu>.  All rights reserved.
@@ -77,7 +77,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_aue.c,v 1.104 2007/09/01 07:32:32 dyoung Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_aue.c,v 1.105 2007/11/20 10:43:01 sborrill Exp $");
 
 #if defined(__NetBSD__)
 #include "opt_inet.h"
@@ -713,6 +713,26 @@ USB_MATCH(aue)
 {
 	USB_MATCH_START(aue, uaa);
 
+	/* 
+	 * Some manufacturers use the same vendor and product id for
+	 * different devices. We need to sanity check the DeviceClass 
+	 * in this case
+	 * Currently known guilty products:
+	 * 0x050d/0x0121 Belkin Bluetooth and USB2LAN
+	 *
+	 * If this turns out to be more common, we could use a quirk
+	 * table.
+	 */
+	if (uaa->vendor == USB_VENDOR_BELKIN &&
+		uaa->product == USB_PRODUCT_BELKIN_USB2LAN) {
+		usb_device_descriptor_t *dd;
+		
+		dd = usbd_get_device_descriptor(uaa->device);
+		if (dd != NULL &&
+			dd->bDeviceClass != UDCLASS_IN_INTERFACE)
+			return (UMATCH_NONE);
+	}
+	
 	return (aue_lookup(uaa->vendor, uaa->product) != NULL ?
 		UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
 }