Commit 1ab8c3fc authored Oct 18, 2015 by Anton V. Shokurov Committed by Mauro Carvalho Chehab Dec 18, 2015

[media] uvcvideo: Fix reading the current exposure value of UVC



V4L2_CID_EXPOSURE_ABSOLUTE property does not return an updated value when
autoexposure (V4L2_CID_EXPOSURE_AUTO) is turned on. This patch fixes this
issue by adding the UVC_CTRL_FLAG_AUTO_UPDATE flag.

Tested on a C920 camera.

Signed-off-by: Anton V. Shokurov <shokurov.anton.v@yandex.ru>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

parent f0b0faff

drivers/media/usb/uvc/uvc_ctrl.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -227,7 +227,8 @@ static struct uvc_control_info uvc_ctrls[] = {
		.size = 4,
		.flags = UVC_CTRL_FLAG_SET_CUR
		\| UVC_CTRL_FLAG_GET_RANGE
		\| UVC_CTRL_FLAG_RESTORE,
		\| UVC_CTRL_FLAG_RESTORE
		\| UVC_CTRL_FLAG_AUTO_UPDATE,
		},
		{
		.entity = UVC_GUID_UVC_CAMERA,