From: James Hilliard james.hilliard1@gmail.com
[ 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@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 --- drivers/media/usb/uvc/uvcvideo.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index 05398784d1c89..acb9f95127eb2 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -167,7 +167,7 @@ /* 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 */