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1 | .. -*- coding: utf-8; mode: rst -*- |
2 | ||
3 | .. _audio_fwrite: | |
4 | ||
586027ce | 5 | ================= |
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6 | DVB audio write() |
7 | ================= | |
8 | ||
15e7d615 | 9 | Name |
586027ce | 10 | ---- |
47d23e36 | 11 | |
586027ce | 12 | DVB audio write() |
47d23e36 | 13 | |
cf8076c3 | 14 | .. attention:: This ioctl is deprecated |
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15 | |
16 | Synopsis | |
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17 | -------- |
18 | ||
1b81f010 | 19 | .. c:function:: size_t write(int fd, const void *buf, size_t count) |
cf8076c3 | 20 | :name: dvb-audio-write |
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 | - void \*buf | |
40 | ||
41 | - Pointer to the buffer containing the PES data. | |
42 | ||
43 | - .. row 3 | |
44 | ||
45 | - size_t count | |
46 | ||
47 | - Size of buf. | |
48 | ||
49 | ||
15e7d615 | 50 | Description |
586027ce | 51 | ----------- |
47d23e36 | 52 | |
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53 | This system call can only be used if AUDIO_SOURCE_MEMORY is selected |
54 | in the ioctl call AUDIO_SELECT_SOURCE. The data provided shall be in | |
55 | PES format. If O_NONBLOCK is not specified the function will block | |
56 | until buffer space is available. The amount of data to be transferred is | |
57 | implied by count. | |
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58 | |
59 | ||
15e7d615 | 60 | Return Value |
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61 | ------------ |
62 | ||
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63 | .. flat-table:: |
64 | :header-rows: 0 | |
65 | :stub-columns: 0 | |
66 | ||
67 | ||
68 | - .. row 1 | |
69 | ||
70 | - ``EPERM`` | |
71 | ||
72 | - Mode AUDIO_SOURCE_MEMORY not selected. | |
73 | ||
74 | - .. row 2 | |
75 | ||
76 | - ``ENOMEM`` | |
77 | ||
78 | - Attempted to write more data than the internal buffer can hold. | |
79 | ||
80 | - .. row 3 | |
81 | ||
82 | - ``EBADF`` | |
83 | ||
84 | - fd is not a valid open file descriptor. |