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1 | .. -*- coding: utf-8; mode: rst -*- |
2 | ||
3 | .. _VIDEO_SET_SYSTEM: | |
4 | ||
586027ce | 5 | ================ |
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6 | VIDEO_SET_SYSTEM |
7 | ================ | |
8 | ||
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9 | NAME |
10 | ---- | |
47d23e36 | 11 | |
586027ce | 12 | VIDEO_SET_SYSTEM |
47d23e36 | 13 | |
586027ce | 14 | SYNOPSIS |
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15 | -------- |
16 | ||
17 | .. c:function:: int ioctl(fd, int request = VIDEO_SET_SYSTEM , video_system_t system) | |
18 | ||
47d23e36 | 19 | |
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20 | ARGUMENTS |
21 | --------- | |
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22 | |
23 | .. flat-table:: | |
24 | :header-rows: 0 | |
25 | :stub-columns: 0 | |
26 | ||
27 | ||
28 | - .. row 1 | |
29 | ||
30 | - int fd | |
31 | ||
32 | - File descriptor returned by a previous call to open(). | |
33 | ||
34 | - .. row 2 | |
35 | ||
36 | - int request | |
37 | ||
38 | - Equals VIDEO_SET_FORMAT for this command. | |
39 | ||
40 | - .. row 3 | |
41 | ||
42 | - video_system_t system | |
43 | ||
44 | - video system of TV output. | |
45 | ||
46 | ||
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47 | DESCRIPTION |
48 | ----------- | |
49 | ||
50 | This ioctl sets the television output format. The format (see section | |
51 | ??) may vary from the color format of the displayed MPEG stream. If the | |
52 | hardware is not able to display the requested format the call will | |
53 | return an error. | |
54 | ||
55 | ||
56 | RETURN VALUE | |
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57 | ------------ |
58 | ||
59 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
60 | appropriately. The generic error codes are described at the | |
61 | :ref:`Generic Error Codes <gen-errors>` chapter. | |
62 | ||
63 | ||
64 | ||
65 | .. flat-table:: | |
66 | :header-rows: 0 | |
67 | :stub-columns: 0 | |
68 | ||
69 | ||
70 | - .. row 1 | |
71 | ||
72 | - ``EINVAL`` | |
73 | ||
74 | - system is not a valid or supported video system. |