From 91a8561d0eed710330956a06487f5c888f5ae743 Mon Sep 17 00:00:00 2001
From: Alberto Aguirre <albaguirre@gmail.com>
Date: Wed, 18 Apr 2018 09:35:35 -0500
Subject: [PATCH] ALSA: usb-audio: add implicit fb quirk for Axe-Fx III
Git-commit: 91a8561d0eed710330956a06487f5c888f5ae743
Patch-mainline: v4.18-rc1
References: bsc#1121278
The Axe-Fx III implicit feedback end point and the data sink endpoint
are in different interface descriptors. Add quirk to ensure a sync
endpoint is properly configured.
Signed-off-by: Alberto Aguirre <albaguirre@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/usb/pcm.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index c0746cc20ac4..ad39b3cca247 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -342,6 +342,10 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
ep = 0x86;
ifnum = 2;
goto add_sync_ep_from_ifnum;
+ case USB_ID(0x2466, 0x8010): /* Fractal Audio Axe-Fx III */
+ ep = 0x81;
+ ifnum = 2;
+ goto add_sync_ep_from_ifnum;
case USB_ID(0x1397, 0x0002): /* Behringer UFX1204 */
ep = 0x81;
ifnum = 1;
--
2.20.1