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Code Issues Releases Wiki Activity

media: uvcvideo: Increase UVC_CTRL_CONTROL_TIMEOUT to 5 seconds.

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[ Upstream commit c8ed7d2f61 ]

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@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
James Hilliard 2021-11-14 09:52:36 +01:00 committed by Greg Kroah-Hartman
parent d0e3ab637d
commit 74e60c1dce
1 changed files with 1 additions and 1 deletions
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2
drivers/media/usb/uvc/uvcvideo.h
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@ -183,7 +183,7 @@
/* 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 */