| From 0938ecae432e7ac8b01080c35dd81d50a1e43033 Mon Sep 17 00:00:00 2001 |
| From: "Geoffrey D. Bennett" <g@b4.vu> |
| Date: Wed, 4 Nov 2020 22:27:17 +1030 |
| Subject: ALSA: usb-audio: Add implicit feedback quirk for Qu-16 |
| |
| From: Geoffrey D. Bennett <g@b4.vu> |
| |
| commit 0938ecae432e7ac8b01080c35dd81d50a1e43033 upstream. |
| |
| This patch fixes audio distortion on playback for the Allen&Heath |
| Qu-16. |
| |
| Signed-off-by: Geoffrey D. Bennett <g@b4.vu> |
| Cc: <stable@vger.kernel.org> |
| Link: https://lore.kernel.org/r/20201104115717.GA19046@b4.vu |
| Signed-off-by: Takashi Iwai <tiwai@suse.de> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| sound/usb/pcm.c | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| --- a/sound/usb/pcm.c |
| +++ b/sound/usb/pcm.c |
| @@ -323,6 +323,7 @@ static int set_sync_ep_implicit_fb_quirk |
| switch (subs->stream->chip->usb_id) { |
| case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ |
| case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ |
| + case USB_ID(0x22f0, 0x0006): /* Allen&Heath Qu-16 */ |
| ep = 0x81; |
| ifnum = 3; |
| goto add_sync_ep_from_ifnum; |
