From: Pavel Hofman <pavel.hofman@xxxxxxxxxxx> commit b6a1e78b96a5d7f312f08b3a470eb911ab5feec0 upstream. USB Audio analyzer RTX6001 uses the same implicit feedback quirk as other XMOS-based devices. Signed-off-by: Pavel Hofman <pavel.hofman@xxxxxxxxxxx> Tested-by: Pavel Hofman <pavel.hofman@xxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/822f0f20-1886-6884-a6b2-d11c685cbafa@xxxxxxxxxxx Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- sound/usb/pcm.c | 1 + 1 file changed, 1 insertion(+) --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -368,6 +368,7 @@ static int set_sync_ep_implicit_fb_quirk goto add_sync_ep_from_ifnum; case USB_ID(0x07fd, 0x0008): /* MOTU M Series */ case USB_ID(0x31e9, 0x0002): /* Solid State Logic SSL2+ */ + case USB_ID(0x0d9a, 0x00df): /* RTX6001 */ ep = 0x81; ifnum = 2; goto add_sync_ep_from_ifnum;