1.. -*- coding: utf-8; mode: rst -*-
2
3.. _audio_fwrite:
4
5=========================
6Digital TV audio write()
7=========================
8
9Name
10----
11
12Digital TV audio write()
13
14.. attention:: This ioctl is deprecated
15
16Synopsis
17--------
18
19.. c:function:: size_t write(int fd, const void *buf, size_t count)
20    :name: dvb-audio-write
21
22
23Arguments
24---------
25
26.. flat-table::
27    :header-rows:  0
28    :stub-columns: 0
29
30
31    -  .. row 1
32
33       -  int fd
34
35       -  File descriptor returned by a previous call to open().
36
37    -  .. row 2
38
39       -  void \*buf
40
41       -  Pointer to the buffer containing the PES data.
42
43    -  .. row 3
44
45       -  size_t count
46
47       -  Size of buf.
48
49
50Description
51-----------
52
53This system call can only be used if AUDIO_SOURCE_MEMORY is selected
54in the ioctl call AUDIO_SELECT_SOURCE. The data provided shall be in
55PES format. If O_NONBLOCK is not specified the function will block
56until buffer space is available. The amount of data to be transferred is
57implied by count.
58
59
60Return Value
61------------
62
63.. flat-table::
64    :header-rows:  0
65    :stub-columns: 0
66
67
68    -  .. row 1
69
70       -  ``EPERM``
71
72       -  Mode AUDIO_SOURCE_MEMORY not selected.
73
74    -  .. row 2
75
76       -  ``ENOMEM``
77
78       -  Attempted to write more data than the internal buffer can hold.
79
80    -  .. row 3
81
82       -  ``EBADF``
83
84       -  fd is not a valid open file descriptor.
85