USB VID/PID clash between pegasus and hci_usb drivers

Hi,

In its infinite wisdom, Belkin has released two products with identical VID:PID numbers; namely
0x050d:0x0121. The first devices is a network adapter that uses the pegasus driver, and the second
is a Bluetooth adapter that uses the "Wireless" class to load the hci_usb module. Here is the
Bluetooth adapter's device descriptor:

T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=e0(unk. ) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=050d ProdID=0121 Rev= 4.13
S:  Manufacturer=Broadcom Corp
S:  Product=BELKIN BLUETOOTH USB ADAPTER CL. 1
S:  SerialNumber=000A3A7DFF80
C:* #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:* If#= 1 Alt= 2 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=84(I) Atr=02(Bulk) MxPS=  32 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS=  32 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=00 Driver=(none)

Unfortunately, I need to be able to use both these drivers simultaneously (I have a 3com adapter
that needs the pegasus driver) and so I cannot just put "blacklist pegasus" in my modprobe.conf
file. I have therefore tried patching the pegasus module instead so that it requires a device
class of 0xFF just for the Belkin adapter.

Cheers,
Chris

--- linux-2.6.23/drivers/net/usb/pegasus.h.orig	2007-07-09 23:59:53.000000000 +0100
+++ linux-2.6.23/drivers/net/usb/pegasus.h	2007-12-29 22:29:36.000000000 +0000
@@ -202,8 +202,8 @@
 		DEFAULT_GPIO_RESET | PEGASUS_II )
 PEGASUS_DEV( "Allied Telesyn Int. AT-USB100", VENDOR_ALLIEDTEL, 0xb100,
 		DEFAULT_GPIO_RESET | PEGASUS_II )
-PEGASUS_DEV( "Belkin F5D5050 USB Ethernet", VENDOR_BELKIN, 0x0121,
-		DEFAULT_GPIO_RESET | PEGASUS_II )
+PEGASUS_DEV_CLASS( "Belkin F5D5050 USB Ethernet", VENDOR_BELKIN, 0x0121, 0xFF,
+		   DEFAULT_GPIO_RESET | PEGASUS_II )
 PEGASUS_DEV( "Billionton USB-100", VENDOR_BILLIONTON, 0x0986,
 		DEFAULT_GPIO_RESET )
 PEGASUS_DEV( "Billionton USBLP-100", VENDOR_BILLIONTON, 0x0987,
--- linux-2.6.23/drivers/net/usb/pegasus.c.orig	2007-10-16 18:44:30.000000000 +0100
+++ linux-2.6.23/drivers/net/usb/pegasus.c	2007-12-29 22:33:07.000000000 +0000
@@ -62,8 +62,11 @@
 static struct usb_eth_dev usb_dev_id[] = {
 #define	PEGASUS_DEV(pn, vid, pid, flags)	\
 	{.name = pn, .vendor = vid, .device = pid, .private = flags},
+#define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
+	PEGASUS_DEV(pn, vid, pid, flags)
 #include "pegasus.h"
 #undef	PEGASUS_DEV
+#undef  PEGASUS_DEV_CLASS
 	{NULL, 0, 0, 0},
 	{NULL, 0, 0, 0}
 };
@@ -71,8 +74,12 @@
 static struct usb_device_id pegasus_ids[] = {
 #define	PEGASUS_DEV(pn, vid, pid, flags) \
 	{.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid},
+#define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
+	{.match_flags = (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_CLASS), \
+	 .idVendor = vid, .idProduct = pid, .bDeviceClass = dclass},
 #include "pegasus.h"
 #undef	PEGASUS_DEV
+#undef  PEGASUS_DEV_CLASS
 	{},
 	{}
 };



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