This uses the same quirk as the Motu and SSL2 devices. Tested on the UR22C.

Fixes bug 208851.

Signed-off-by: Joshua Sivec sivec@posteo.net BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=208851 --- sound/usb/pcm.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 5600751803cf..10d342270dd9 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -369,6 +369,7 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs, case USB_ID(0x07fd, 0x0008): /* MOTU M Series */ case USB_ID(0x31e9, 0x0001): /* Solid State Logic SSL2 */ case USB_ID(0x31e9, 0x0002): /* Solid State Logic SSL2+ */ + case USB_ID(0x0499, 0x172f): /* Steinberg UR22C */ case USB_ID(0x0d9a, 0x00df): /* RTX6001 */ ep = 0x81; ifnum = 2;