This is a note to let you know that I've just added the patch titled media: uvcvideo: Increase UVC_CTRL_CONTROL_TIMEOUT to 5 seconds. to the 5.15-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: media-uvcvideo-increase-uvc_ctrl_control_timeout-to-.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 5f96c575f41f86a3bc3c0f4871e742595e9b2001 Author: James Hilliard <james.hilliard1@xxxxxxxxx> Date: Sun Nov 14 09:52:36 2021 +0100 media: uvcvideo: Increase UVC_CTRL_CONTROL_TIMEOUT to 5 seconds. [ Upstream commit c8ed7d2f614cd8b315981d116c7a2fb01829500d ] Some uvc devices appear to require the maximum allowed USB timeout for GET_CUR/SET_CUR requests. So lets just bump the UVC control timeout to 5 seconds which is the same as the usb ctrl get/set defaults: USB_CTRL_GET_TIMEOUT 5000 USB_CTRL_SET_TIMEOUT 5000 It fixes the following runtime warnings: Failed to query (GET_CUR) UVC control 11 on unit 2: -110 (exp. 1). Failed to query (SET_CUR) UVC control 3 on unit 2: -110 (exp. 2). Signed-off-by: James Hilliard <james.hilliard1@xxxxxxxxx> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index cce5e38133cd3..c3ea6a53869f5 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -189,7 +189,7 @@ /* Maximum status buffer size in bytes of interrupt URB. */ #define UVC_MAX_STATUS_SIZE 16 -#define UVC_CTRL_CONTROL_TIMEOUT 500 +#define UVC_CTRL_CONTROL_TIMEOUT 5000 #define UVC_CTRL_STREAMING_TIMEOUT 5000 /* Maximum allowed number of control mappings per device */