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: [PATCH] ALSA: usb-audio: Add implicit feedback quirk for Qu-16
Git-commit: 0938ecae432e7ac8b01080c35dd81d50a1e43033
Patch-mainline: v5.10-rc3
References: git-fixes
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>
---
sound/usb/pcm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 7227ccb7e57e..a860303cc522 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -336,6 +336,7 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
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;
--
2.26.2