ALSA: usb-audio: add implicit fb quirk for Axe-Fx III

The Axe-Fx III implicit feedback end point and the data sink endpoint
are in different interface descriptors. Add quirk to ensure a sync
endpoint is properly configured.

Signed-off-by: Alberto Aguirre <albaguirre@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index c0746cc..ad39b3c 100644 (file)
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -342,6 +342,10 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
                ep = 0x86;
                ifnum = 2;
                goto add_sync_ep_from_ifnum;
+       case USB_ID(0x2466, 0x8010): /* Fractal Audio Axe-Fx III */
+               ep = 0x81;
+               ifnum = 2;
+               goto add_sync_ep_from_ifnum;
        case USB_ID(0x1397, 0x0002): /* Behringer UFX1204 */
                ep = 0x81;
                ifnum = 1;