OpenCloudOS-Kernel/Documentation/media/uapi/dvb/audio-set-attributes.rst

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.. -*- coding: utf-8; mode: rst -*-
.. _AUDIO_SET_ATTRIBUTES:
====================
AUDIO_SET_ATTRIBUTES
====================
Name
----
AUDIO_SET_ATTRIBUTES
Synopsis
--------
.. c:function:: int ioctl(fd, int request = AUDIO_SET_ATTRIBUTES, audio_attributes_t attr )
Arguments
---------
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- int fd
- File descriptor returned by a previous call to open().
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- int request
- Equals AUDIO_SET_ATTRIBUTES for this command.
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- audio_attributes_t attr
- audio attributes according to section ??
Description
-----------
This ioctl is intended for DVD playback and allows you to set certain
information about the audio stream.
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.
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- ``EINVAL``
- attr is not a valid or supported attribute setting.