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Linux kernel mirror (for testing)
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1.. -*- coding: utf-8; mode: rst -*-
2
3.. _AUDIO_SET_MUTE:
4
5==============
6AUDIO_SET_MUTE
7==============
8
9Name
10----
11
12AUDIO_SET_MUTE
13
14.. attention:: This ioctl is deprecated
15
16Synopsis
17--------
18
19.. c:function:: int ioctl(int fd, AUDIO_SET_MUTE, boolean state)
20 :name: AUDIO_SET_MUTE
21
22
23Arguments
24---------
25
26.. flat-table::
27 :header-rows: 0
28 :stub-columns: 0
29
30
31 -
32
33 - int fd
34
35 - File descriptor returned by a previous call to open().
36
37 -
38
39 - boolean state
40
41 - Indicates if audio device shall mute or not.
42
43 TRUE: Audio Mute
44
45 FALSE: Audio Un-mute
46
47
48Description
49-----------
50
51This ioctl is for DVB devices only. To control a V4L2 decoder use the
52V4L2 :ref:`VIDIOC_DECODER_CMD` with the
53``V4L2_DEC_CMD_START_MUTE_AUDIO`` flag instead.
54
55This ioctl call asks the audio device to mute the stream that is
56currently being played.
57
58
59Return Value
60------------
61
62On success 0 is returned, on error -1 and the ``errno`` variable is set
63appropriately. The generic error codes are described at the
64:ref:`Generic Error Codes <gen-errors>` chapter.