usbnet: recognize SiteCom CN-124

Add Sitecom CN-124 device IDs to ALI M5632 usb host-to-host cable;
device IDs from Francois Barre <francois.barre@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/net/cdc_subset.c

@@ -79,13 +79,19 @@ static int always_connected (struct usbnet *dev)
  *
  * ALi M5632 driver ... does high speed
  *
+ * NOTE that the MS-Windows drivers for this chip use some funky and
+ * (naturally) undocumented 7-byte prefix to each packet, so this is a
+ * case where we don't currently interoperate.  Also, once you unplug
+ * one end of the cable, you need to replug the other end too ... since
+ * chip docs are unavailable, there's no way to reset the relevant state
+ * short of a power cycle.
+ *
  *-------------------------------------------------------------------------*/
 
 static const struct driver_info	ali_m5632_info = {
 	.description =	"ALi M5632",
 };
 
-
 #endif
 
 
@@ -223,6 +229,10 @@ static const struct usb_device_id	products [] = {
 	USB_DEVICE (0x0402, 0x5632),	// ALi defaults
 	.driver_info =	(unsigned long) &ali_m5632_info,
 },
+{
+	USB_DEVICE (0x182d,0x207c),	// SiteCom CN-124
+	.driver_info =	(unsigned long) &ali_m5632_info,
+},
 #endif
 
 #ifdef	CONFIG_USB_AN2720