Documentation/media/uapi/dvb/audio-set-ext-id.rst

   1 .. -*- coding: utf-8; mode: rst -*-
   2
   3 .. _AUDIO_SET_EXT_ID:
   4
   5 ================
   6 AUDIO_SET_EXT_ID
   7 ================
   8
   9 Name
  10 ----
  11
  12 AUDIO_SET_EXT_ID
  13
  14
  15 Synopsis
  16 --------
  17
  18 .. cpp:function:: int  ioctl(fd, int request = AUDIO_SET_EXT_ID, int id)
  19
  20
  21 Arguments
  22 ---------
  23
  24 .. flat-table::
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  27
  28
  29     -  .. row 1
  30
  31        -  int fd
  32
  33        -  File descriptor returned by a previous call to open().
  34
  35     -  .. row 2
  36
  37        -  int request
  38
  39        -  Equals AUDIO_SET_EXT_ID for this command.
  40
  41     -  .. row 3
  42
  43        -  int id
  44
  45        -  audio sub_stream_id
  46
  47
  48 Description
  49 -----------
  50
  51 This ioctl can be used to set the extension id for MPEG streams in DVD
  52 playback. Only the first 3 bits are recognized.
  53
  54
  55 Return Value
  56 ------------
  57
  58 On success 0 is returned, on error -1 and the ``errno`` variable is set
  59 appropriately. The generic error codes are described at the
  60 :ref:`Generic Error Codes <gen-errors>` chapter.
  61
  62 .. flat-table::
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  65
  66
  67     -  .. row 1
  68
  69        -  ``EINVAL``
  70
  71        -  id is not a valid id.