This is a note to let you know that I've just added the patch titled
ALSA: usb-audio: Add delay quirk for all Logitech USB devices
to the 5.9-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-delay-quirk-for-all-logitech-usb-devices.patch
and it can be found in the queue-5.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 54a2a3898f469a915510038fe84ef4f083131d3e Mon Sep 17 00:00:00 2001
From: Joakim Tjernlund <joakim.tjernlund@xxxxxxxxxxxx>
Date: Tue, 17 Nov 2020 13:28:03 +0100
Subject: ALSA: usb-audio: Add delay quirk for all Logitech USB devices
From: Joakim Tjernlund <joakim.tjernlund@xxxxxxxxxxxx>
commit 54a2a3898f469a915510038fe84ef4f083131d3e upstream.
Found one more Logitech device, BCC950 ConferenceCam, which needs
the same delay here. This makes 3 out of 3 devices I have tried.
Therefore, add a delay for all Logitech devices as it does not hurt.
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@xxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 4.19.y, 5.4.y
Link: https://lore.kernel.org/r/20201117122803.24310-1-joakim.tjernlund@xxxxxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/usb/quirks.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1678,13 +1678,13 @@ void snd_usb_ctl_msg_quirk(struct usb_de
&& (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
msleep(20);
- /* Zoom R16/24, Logitech H650e/H570e, Jabra 550a, Kingston HyperX
- * needs a tiny delay here, otherwise requests like get/set
- * frequency return as failed despite actually succeeding.
+ /* Zoom R16/24, many Logitech(at least H650e/H570e/BCC950),
+ * Jabra 550a, Kingston HyperX needs a tiny delay here,
+ * otherwise requests like get/set frequency return
+ * as failed despite actually succeeding.
*/
if ((chip->usb_id == USB_ID(0x1686, 0x00dd) ||
- chip->usb_id == USB_ID(0x046d, 0x0a46) ||
- chip->usb_id == USB_ID(0x046d, 0x0a56) ||
+ USB_ID_VENDOR(chip->usb_id) == 0x046d || /* Logitech */
chip->usb_id == USB_ID(0x0b0e, 0x0349) ||
chip->usb_id == USB_ID(0x0951, 0x16ad)) &&
(requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
Patches currently in stable-queue which might be from joakim.tjernlund@xxxxxxxxxxxx are
queue-5.9/alsa-usb-audio-add-delay-quirk-for-all-logitech-usb-devices.patch
