USB generic driver
MOTU builds other USB MIDI interfaces with the same product ID as the
FastLane, so we have to check the bDeviceSubClass field to differentiate
between them.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
 /* Mark of the Unicorn devices */
 {
        /* thanks to Robert A. Lerche <ral 'at' msbit.com> */
-       USB_DEVICE(0x07fd, 0x0001),
+       .match_flags = USB_DEVICE_ID_MATCH_VENDOR |
+                      USB_DEVICE_ID_MATCH_PRODUCT |
+                      USB_DEVICE_ID_MATCH_DEV_SUBCLASS,
+       .idVendor = 0x07fd,
+       .idProduct = 0x0001,
+       .bDeviceSubClass = 2,
        .driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
                .vendor_name = "MOTU",
                .product_name = "Fastlane",