Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

Open Menu /Documentation/media/uapi/dvb/video-set-display-format.rst 
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
.. -*- coding: utf-8; mode: rst -*-

.. _VIDEO_SET_DISPLAY_FORMAT:

========================
VIDEO_SET_DISPLAY_FORMAT
========================

Name
----

VIDEO_SET_DISPLAY_FORMAT

.. attention:: This ioctl is deprecated.

Synopsis
--------

.. c:function:: int ioctl(fd, VIDEO_SET_DISPLAY_FORMAT)
    :name: VIDEO_SET_DISPLAY_FORMAT


Arguments
---------

.. flat-table::
    :header-rows:  0
    :stub-columns: 0


    -  .. row 1

       -  int fd

       -  File descriptor returned by a previous call to open().

    -  .. row 2

       -  int request

       -  Equals VIDEO_SET_DISPLAY_FORMAT for this command.

    -  .. row 3

       -  video_display_format_t format

       -  Selects the video format to be used.


Description
-----------

This ioctl call asks the Video Device to select the video format to be
applied by the MPEG chip on the video.


Return Value
------------

On success 0 is returned, on error -1 and the ``errno`` variable is set
appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.