linux-kernel - [PATCH 5.4 091/129] ALSA: usb-audio: Add implicit feedback quirk for UR22C

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Date:   Tue,  8 Sep 2020 17:25:32 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Joshua Sivec <sivec@...teo.net>,
        Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 5.4 091/129] ALSA: usb-audio: Add implicit feedback quirk for UR22C

From: Joshua Sivec <sivec@...teo.net>

commit 7c5b892e0871655fea3294ffac6fa3cc3400b60d upstream.

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

Fixes bug 208851.

Signed-off-by: Joshua Sivec <sivec@...teo.net>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=208851
Cc: <stable@...r.kernel.org>
Link: https://lore.kernel.org/r/20200825165515.8239-1-sivec@posteo.net
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 sound/usb/pcm.c |    1 +
 1 file changed, 1 insertion(+)

--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -356,6 +356,7 @@ static int set_sync_ep_implicit_fb_quirk
 	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;