Commit f4eabafe authored Aug 06, 2009 by Laurent Pinchart Committed by Mauro Carvalho Chehab Dec 05, 2009

V4L/DVB (13148): uvcvideo: Handle V4L2_CTRL_TYPE_BUTTON control type in VIDIOC_QUERYCTRL

Return minimum, maximum and step set to 0 without querying the hardware.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

parent ebbb5c3e

drivers/media/video/uvc/uvc_ctrl.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -826,6 +826,13 @@ int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,
		ret = 0;
		goto out;

		case V4L2_CTRL_TYPE_BUTTON:
		v4l2_ctrl->minimum = 0;
		v4l2_ctrl->maximum = 0;
		v4l2_ctrl->step = 0;
		ret = 0;
		goto out;

		default:
		break;
		}