quirks_table.h

{
        USB_DEVICE(0x0499, 0x1509),
        .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
                /* .vendor_name = "Yamaha", */
                /* .product_name = "Steinberg UR22", */
                .ifnum = QUIRK_ANY_INTERFACE,
                .type = QUIRK_COMPOSITE,
                .data = (const struct snd_usb_audio_quirk[]) {
                        {
                                .ifnum = 1,
                                .type = QUIRK_AUDIO_STANDARD_INTERFACE
                        },
                        {
                                .ifnum = 2,
                                .type = QUIRK_AUDIO_STANDARD_INTERFACE
                        },
                        {
                                .ifnum = 3,
                                .type = QUIRK_MIDI_YAMAHA
                        },
                        {
                                .ifnum = 4,
                                .type = QUIRK_IGNORE_INTERFACE
                        },
                        {
                                .ifnum = -1
                        }
                }
        }
},