Documentation/userspace-api/media/dvb/audio-set-mute.rst

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.. document under the terms of the GNU Free Documentation License,
.. Version 1.1 or any later version published by the Free Software
.. Foundation, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/userspace-api/media/fdl-appendix.rst.
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.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections

.. _AUDIO_SET_MUTE:

==============
AUDIO_SET_MUTE
==============

Name
----

AUDIO_SET_MUTE

.. attention:: This ioctl is deprecated

Synopsis
--------

.. c:function:: int  ioctl(int fd, AUDIO_SET_MUTE, boolean state)
    :name: AUDIO_SET_MUTE


Arguments
---------

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


    -

       -  int fd

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

    -

       -  boolean state

       -  Indicates if audio device shall mute or not.

          TRUE: Audio Mute

          FALSE: Audio Un-mute


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

This ioctl is for Digital TV devices only. To control a V4L2 decoder use the
V4L2 :ref:`VIDIOC_DECODER_CMD` with the
``V4L2_DEC_CMD_START_MUTE_AUDIO`` flag instead.

This ioctl call asks the audio device to mute the stream that is
currently being played.


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.