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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.audio
.. _AUDIO_SET_MUTE:
==============
AUDIO_SET_MUTE
==============
Name
----
AUDIO_SET_MUTE
.. attention:: This ioctl is deprecated
Synopsis
--------
.. c:macro:: AUDIO_SET_MUTE
``int ioctl(int fd, AUDIO_SET_MUTE, boolean state)``
Arguments
---------
.. flat-table::
:header-rows: 0
: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.
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