diff --git a/[refs] b/[refs] index 33c37f635bac..8287032ad811 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: e56be916660da811fe4e830dfb958f13af361d59 +refs/heads/master: 3653639e5daf2ac5f4763e4f1b6cb57538184be9 diff --git a/trunk/drivers/media/video/uvc/uvc_ctrl.c b/trunk/drivers/media/video/uvc/uvc_ctrl.c index fcfcfbce0a2d..4e6d484911fe 100644 --- a/trunk/drivers/media/video/uvc/uvc_ctrl.c +++ b/trunk/drivers/media/video/uvc/uvc_ctrl.c @@ -698,6 +698,14 @@ static void uvc_set_le_value(struct uvc_control_mapping *mapping, int offset = mapping->offset; __u8 mask; + /* According to the v4l2 spec, writing any value to a button control + * should result in the action belonging to the button control being + * triggered. UVC devices however want to see a 1 written -> override + * value. + */ + if (mapping->v4l2_type == V4L2_CTRL_TYPE_BUTTON) + value = -1; + data += offset / 8; offset &= 7;