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1 | .. -*- coding: utf-8; mode: rst -*- |
2 | ||
3 | .. _VIDEO_GET_NAVI: | |
4 | ||
586027ce | 5 | ============== |
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6 | VIDEO_GET_NAVI |
7 | ============== | |
8 | ||
15e7d615 | 9 | Name |
586027ce | 10 | ---- |
47d23e36 | 11 | |
586027ce | 12 | VIDEO_GET_NAVI |
47d23e36 | 13 | |
cf8076c3 | 14 | .. attention:: This ioctl is deprecated. |
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15 | |
16 | Synopsis | |
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17 | -------- |
18 | ||
848d1031 | 19 | .. c:function:: int ioctl(fd, VIDEO_GET_NAVI , struct video_navi_pack *navipack) |
cf8076c3 | 20 | :name: VIDEO_GET_NAVI |
47d23e36 | 21 | |
47d23e36 | 22 | |
15e7d615 | 23 | Arguments |
586027ce | 24 | --------- |
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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_GET_NAVI for this command. | |
42 | ||
43 | - .. row 3 | |
44 | ||
45 | - video_navi_pack_t \*navipack | |
46 | ||
47 | - PCI or DSI pack (private stream 2) according to section ??. | |
48 | ||
49 | ||
15e7d615 | 50 | Description |
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51 | ----------- |
52 | ||
53 | This ioctl returns navigational information from the DVD stream. This is | |
54 | especially needed if an encoded stream has to be decoded by the | |
55 | hardware. | |
56 | ||
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57 | .. c:type:: video_navi_pack |
58 | ||
59 | .. code-block::c | |
60 | ||
61 | typedef struct video_navi_pack { | |
62 | int length; /* 0 ... 1024 */ | |
63 | __u8 data[1024]; | |
64 | } video_navi_pack_t; | |
586027ce | 65 | |
15e7d615 | 66 | Return Value |
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67 | ------------ |
68 | ||
69 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
70 | appropriately. The generic error codes are described at the | |
71 | :ref:`Generic Error Codes <gen-errors>` chapter. | |
72 | ||
73 | ||
74 | ||
75 | .. flat-table:: | |
76 | :header-rows: 0 | |
77 | :stub-columns: 0 | |
78 | ||
79 | ||
80 | - .. row 1 | |
81 | ||
82 | - ``EFAULT`` | |
83 | ||
84 | - driver is not able to return navigational information |