Commit | Line | Data |
---|---|---|
47d23e36 MCC |
1 | .. -*- coding: utf-8; mode: rst -*- |
2 | ||
3 | .. _VIDEO_TRY_COMMAND: | |
4 | ||
586027ce | 5 | ================= |
47d23e36 MCC |
6 | VIDEO_TRY_COMMAND |
7 | ================= | |
8 | ||
15e7d615 | 9 | Name |
586027ce | 10 | ---- |
47d23e36 | 11 | |
586027ce | 12 | VIDEO_TRY_COMMAND |
47d23e36 | 13 | |
cf8076c3 | 14 | .. attention:: This ioctl is deprecated. |
15e7d615 MCC |
15 | |
16 | Synopsis | |
47d23e36 MCC |
17 | -------- |
18 | ||
cf8076c3 MCC |
19 | .. c:function:: int ioctl(int fd, VIDEO_TRY_COMMAND, struct video_command *cmd) |
20 | :name: VIDEO_TRY_COMMAND | |
47d23e36 | 21 | |
47d23e36 | 22 | |
15e7d615 | 23 | Arguments |
586027ce | 24 | --------- |
47d23e36 MCC |
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_TRY_COMMAND for this command. | |
42 | ||
43 | - .. row 3 | |
44 | ||
45 | - struct video_command \*cmd | |
46 | ||
47 | - Try a decoder command. | |
48 | ||
49 | ||
15e7d615 | 50 | Description |
586027ce MCC |
51 | ----------- |
52 | ||
53 | This ioctl is obsolete. Do not use in new drivers. For V4L2 decoders | |
54 | this ioctl has been replaced by the | |
55 | :ref:`VIDIOC_TRY_DECODER_CMD <VIDIOC_DECODER_CMD>` ioctl. | |
56 | ||
57 | This ioctl tries a decoder command. The ``video_command`` struct is a | |
58 | subset of the ``v4l2_decoder_cmd`` struct, so refer to the | |
59 | :ref:`VIDIOC_TRY_DECODER_CMD <VIDIOC_DECODER_CMD>` documentation | |
60 | for more information. | |
61 | ||
62 | ||
15e7d615 | 63 | Return Value |
47d23e36 MCC |
64 | ------------ |
65 | ||
66 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
67 | appropriately. The generic error codes are described at the | |
68 | :ref:`Generic Error Codes <gen-errors>` chapter. |