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Diffstat (limited to 'Documentation/media/uapi/dvb/video-command.rst')
| -rw-r--r-- | Documentation/media/uapi/dvb/video-command.rst | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/Documentation/media/uapi/dvb/video-command.rst b/Documentation/media/uapi/dvb/video-command.rst index b1634f722cbd..536d0fdd8399 100644 --- a/Documentation/media/uapi/dvb/video-command.rst +++ b/Documentation/media/uapi/dvb/video-command.rst @@ -11,11 +11,13 @@ Name VIDEO_COMMAND +.. attention:: This ioctl is deprecated. Synopsis -------- -.. cpp:function:: int ioctl(int fd, int request = VIDEO_COMMAND, struct video_command *cmd) +.. c:function:: int ioctl(int fd, VIDEO_COMMAND, struct video_command *cmd) + :name: VIDEO_COMMAND Arguments @@ -57,6 +59,36 @@ subset of the ``v4l2_decoder_cmd`` struct, so refer to the :ref:`VIDIOC_DECODER_CMD` documentation for more information. +.. c:type:: struct video_command + +.. code-block:: c + + /* The structure must be zeroed before use by the application + This ensures it can be extended safely in the future. */ + struct video_command { + __u32 cmd; + __u32 flags; + union { + struct { + __u64 pts; + } stop; + + struct { + /* 0 or 1000 specifies normal speed, + 1 specifies forward single stepping, + -1 specifies backward single stepping, + >1: playback at speed/1000 of the normal speed, + <-1: reverse playback at (-speed/1000) of the normal speed. */ + __s32 speed; + __u32 format; + } play; + + struct { + __u32 data[16]; + } raw; + }; + }; + Return Value ------------ |