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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / 5929cb1769b1171d063c2ec108f5fb66d3239889 / . / Documentation / linux_tv / media / dvb / video-set-id.rst
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Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]1.. -*- coding: utf-8; mode: rst -*-
2
3.. _VIDEO_SET_ID:
4
Mauro Carvalho Chehab586027c2016-07-05 07:58:48 -0300[diff] [blame]5============
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]6VIDEO_SET_ID
7============
8
Mauro Carvalho Chehab15e7d612016-07-05 15:14:35 -0300[diff] [blame]9Name
Mauro Carvalho Chehab586027c2016-07-05 07:58:48 -0300[diff] [blame]10----
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]11
Mauro Carvalho Chehab586027c2016-07-05 07:58:48 -0300[diff] [blame]12VIDEO_SET_ID
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]13
Mauro Carvalho Chehab15e7d612016-07-05 15:14:35 -0300[diff] [blame]14
15Synopsis
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]16--------
17
Mauro Carvalho Chehab5929cb12016-07-05 15:22:59 -0300[diff] [blame^]18.. cpp:function:: int ioctl(int fd, int request = VIDEO_SET_ID, int id)
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]19
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]20
Mauro Carvalho Chehab15e7d612016-07-05 15:14:35 -0300[diff] [blame]21Arguments
Mauro Carvalho Chehab586027c2016-07-05 07:58:48 -0300[diff] [blame]22---------
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]23
24.. flat-table::
25 :header-rows: 0
26 :stub-columns: 0
27
28
29 - .. row 1
30
31 - int fd
32
33 - File descriptor returned by a previous call to open().
34
35 - .. row 2
36
37 - int request
38
39 - Equals VIDEO_SET_ID for this command.
40
41 - .. row 3
42
43 - int id
44
45 - video sub-stream id
46
47
Mauro Carvalho Chehab15e7d612016-07-05 15:14:35 -0300[diff] [blame]48Description
Mauro Carvalho Chehab586027c2016-07-05 07:58:48 -0300[diff] [blame]49-----------
50
51This ioctl selects which sub-stream is to be decoded if a program or
52system stream is sent to the video device.
53
54
Mauro Carvalho Chehab15e7d612016-07-05 15:14:35 -0300[diff] [blame]55Return Value
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]56------------
57
58On success 0 is returned, on error -1 and the ``errno`` variable is set
59appropriately. The generic error codes are described at the
60:ref:`Generic Error Codes <gen-errors>` chapter.
61
62
63
64.. flat-table::
65 :header-rows: 0
66 :stub-columns: 0
67
68
69 - .. row 1
70
71 - ``EINVAL``
72
73 - Invalid sub-stream id.