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Commit 26a871cf authored by Geoffrey D. Bennett's avatar Geoffrey D. Bennett Committed by Greg Kroah-Hartman
Browse files

ALSA: usb-audio: Add implicit feedback quirk for Qu-16 



commit 0938ecae432e7ac8b01080c35dd81d50a1e43033 upstream.

This patch fixes audio distortion on playback for the Allen&Heath
Qu-16.

Signed-off-by: default avatarGeoffrey D. Bennett <g@b4.vu>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201104115717.GA19046@b4.vu


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a46e830d

sound/usb/pcm.c

+1 −0
Original line number Diff line number Diff line
@@ -323,6 +323,7 @@ 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;