tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1.. -*- coding: utf-8; mode: rst -*-
2
3.. _VIDEO_SET_ID:
4
5============
6VIDEO_SET_ID
7============
8
9Name
10----
11
12VIDEO_SET_ID
13
14.. attention:: This ioctl is deprecated.
15
16Synopsis
17--------
18
19.. c:function:: int ioctl(int fd, VIDEO_SET_ID, int id)
20 :name: VIDEO_SET_ID
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 - int request
40
41 - Equals VIDEO_SET_ID for this command.
42
43 - .. row 3
44
45 - int id
46
47 - video sub-stream id
48
49
50Description
51-----------
52
53This ioctl selects which sub-stream is to be decoded if a program or
54system stream is sent to the video device.
55
56
57Return Value
58------------
59
60On success 0 is returned, on error -1 and the ``errno`` variable is set
61appropriately. The generic error codes are described at the
62:ref:`Generic Error Codes <gen-errors>` chapter.
63
64
65
66.. flat-table::
67 :header-rows: 0
68 :stub-columns: 0
69
70
71 - .. row 1
72
73 - ``EINVAL``
74
75 - Invalid sub-stream id.