--- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -346,6 +346,7 @@ static int set_sync_ep_implicit_fb_quirk ifnum = 2; goto add_sync_ep_from_ifnum; case USB_ID(0x2466, 0x8003): /* Fractal Audio Axe-Fx II */ + case USB_ID(0x0499, 0x172a): /* Yamaha MODX */ ep = 0x86; ifnum = 2; goto add_sync_ep_from_ifnum;