Commit c8ed7d2f authored by James Hilliard's avatar James Hilliard Committed by Mauro Carvalho Chehab
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media: uvcvideo: Increase UVC_CTRL_CONTROL_TIMEOUT to 5 seconds. 



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: default avatarJames Hilliard <james.hilliard1@gmail.com>
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent e82822fa

drivers/media/usb/uvc/uvcvideo.h

+1 −1
Original line number Diff line number Diff line
@@ -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 */