This is a note to let you know that I've just added the patch titled
ALSA: usb-audio: Increase delay in MOTU M quirk
to the 6.6-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-increase-delay-in-motu-m-quirk.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 48d6b91798a6694fdd6edb62799754b9d3fe0792 Mon Sep 17 00:00:00 2001
From: Jeremie Knuesel <knuesel@xxxxxxxxx>
Date: Sun, 17 Dec 2023 12:22:43 +0100
Subject: ALSA: usb-audio: Increase delay in MOTU M quirk
From: Jeremie Knuesel <knuesel@xxxxxxxxx>
commit 48d6b91798a6694fdd6edb62799754b9d3fe0792 upstream.
Increase the quirk delay from 2 seconds to 4 seconds. This reflects a
change in the Windows driver in which the delay was increased to about
3.7 seconds. The larger delay fixes an issue where the device fails to
work unless it was powered up early during boot.
Also clarify in the quirk comment that the quirk is only applied to
older devices (USB ID 07fd:0008).
Signed-off-by: Jeremie Knuesel <knuesel@xxxxxxxxx>
Suggested-by: Alexander Tsoy <alexander@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=211975
Link: https://lore.kernel.org/r/20231217112243.33409-1-knuesel@xxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/usb/quirks.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1387,7 +1387,7 @@ free_buf:
static int snd_usb_motu_m_series_boot_quirk(struct usb_device *dev)
{
- msleep(2000);
+ msleep(4000);
return 0;
}
@@ -1630,7 +1630,7 @@ int snd_usb_apply_boot_quirk_once(struct
unsigned int id)
{
switch (id) {
- case USB_ID(0x07fd, 0x0008): /* MOTU M Series */
+ case USB_ID(0x07fd, 0x0008): /* MOTU M Series, 1st hardware version */
return snd_usb_motu_m_series_boot_quirk(dev);
}
Patches currently in stable-queue which might be from knuesel@xxxxxxxxx are
queue-6.6/alsa-usb-audio-increase-delay-in-motu-m-quirk.patch
