1 .. Permission is granted to copy, distribute and/or modify this
2 .. document under the terms of the GNU Free Documentation License,
3 .. Version 1.1 or any later version published by the Free Software
4 .. Foundation, with no Invariant Sections, no Front-Cover Texts
5 .. and no Back-Cover Texts. A copy of the license is included at
6 .. Documentation/media/uapi/fdl-appendix.rst.
8 .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
21 .. attention:: This ioctl is deprecated
26 .. c:function:: int ioctl(int fd, AUDIO_SET_ID, int id)
41 - File descriptor returned by a previous call to open().
53 This ioctl selects which sub-stream is to be decoded if a program or
54 system stream is sent to the video device. If no audio stream type is
55 set the id has to be in [0xC0,0xDF] for MPEG sound, in [0x80,0x87] for
56 AC3 and in [0xA0,0xA7] for LPCM. More specifications may follow for
57 other stream types. If the stream type is set the id just specifies the
58 substream id of the audio stream and only the first 5 bits are
65 On success 0 is returned, on error -1 and the ``errno`` variable is set
66 appropriately. The generic error codes are described at the
67 :ref:`Generic Error Codes <gen-errors>` chapter.