This is a note to let you know that I've just added the patch titled
ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
alsa-usb-audio-add-implicit-fb-quirk-for-behringer-ufx1204.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5e35dc0338d85ccebacf3f77eca1e5dea73155e8 Mon Sep 17 00:00:00 2001
From: Lassi Ylikojola <lassi.ylikojola@xxxxxxxxx>
Date: Fri, 9 Feb 2018 16:51:36 +0200
Subject: ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204
From: Lassi Ylikojola <lassi.ylikojola@xxxxxxxxx>
commit 5e35dc0338d85ccebacf3f77eca1e5dea73155e8 upstream.
Add quirk to ensure a sync endpoint is properly configured.
This patch is a fix for same symptoms on Behringer UFX1204 as patch
from Albertto Aquirre on Dec 8 2016 for Axe-Fx II.
Signed-off-by: Lassi Ylikojola <lassi.ylikojola@xxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/usb/pcm.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -357,6 +357,15 @@ static int set_sync_ep_implicit_fb_quirk
alts = &iface->altsetting[1];
goto add_sync_ep;
+ case USB_ID(0x1397, 0x0002):
+ ep = 0x81;
+ iface = usb_ifnum_to_if(dev, 1);
+
+ if (!iface || iface->num_altsetting == 0)
+ return -EINVAL;
+
+ alts = &iface->altsetting[1];
+ goto add_sync_ep;
}
if (attr == USB_ENDPOINT_SYNC_ASYNC &&
Patches currently in stable-queue which might be from lassi.ylikojola@xxxxxxxxx are
queue-4.9/alsa-usb-audio-add-implicit-fb-quirk-for-behringer-ufx1204.patch