X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=Documentation%2Fmedia%2Fuapi%2Fv4l%2Fvidioc-querystd.rst;h=9324659cebc6f6b7ccb94c881ca8264c2167a208;hb=1b81f010bfd8ce61b79329d7ebb23b62d5d7effb;hp=b4a4e222c7b0c1c9bc64f3c80a1f402dddd34360;hpb=f0c98ebc57c2d5e535bc4f9167f35650d2ba3c90;p=deliverable%2Flinux.git diff --git a/Documentation/media/uapi/v4l/vidioc-querystd.rst b/Documentation/media/uapi/v4l/vidioc-querystd.rst index b4a4e222c7b0..9324659cebc6 100644 --- a/Documentation/media/uapi/v4l/vidioc-querystd.rst +++ b/Documentation/media/uapi/v4l/vidioc-querystd.rst @@ -15,7 +15,7 @@ VIDIOC_QUERYSTD - Sense the video standard received by the current input Synopsis ======== -.. cpp:function:: int ioctl( int fd, int request, v4l2_std_id *argp ) +.. c:function:: int ioctl( int fd, int request, v4l2_std_id *argp ) Arguments @@ -43,7 +43,9 @@ will return V4L2_STD_UNKNOWN. When detection is not possible or fails, the set must contain all standards supported by the current video input or output. -.. note:: Drivers shall *not* switch the video standard +.. note:: + + Drivers shall *not* switch the video standard automatically if a new video standard is detected. Instead, drivers should send the ``V4L2_EVENT_SOURCE_CHANGE`` event (if they support this) and expect that userspace will take action by calling