projects / deliverable / linux.git / blame
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|---|---|---|
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1 | .. -*- coding: utf-8; mode: rst -*- |
| 2 | ||
| 3 | .. _AUDIO_SELECT_SOURCE: | |
| 4 | ||
| 586027ce | 5 | =================== |
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6 | AUDIO_SELECT_SOURCE |
| 7 | =================== | |
| 8 | ||
| 15e7d615 | 9 | Name |
| 586027ce | 10 | ---- |
| 47d23e36 | 11 | |
| 586027ce | 12 | AUDIO_SELECT_SOURCE |
| 47d23e36 | 13 | |
| cf8076c3 | 14 | .. attention:: This ioctl is deprecated |
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15 | |
| 16 | Synopsis | |
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17 | -------- |
| 18 | ||
| 836cf1db | 19 | .. c:function:: int ioctl(int fd, AUDIO_SELECT_SOURCE, struct audio_stream_source *source) |
| cf8076c3 | 20 | :name: AUDIO_SELECT_SOURCE |
| 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 | ||
| cf8076c3 | 31 | - |
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32 | |
| 33 | - int fd | |
| 34 | ||
| 35 | - File descriptor returned by a previous call to open(). | |
| 36 | ||
| cf8076c3 | 37 | - |
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38 | |
| 39 | - audio_stream_source_t source | |
| 40 | ||
| 41 | - Indicates the source that shall be used for the Audio stream. | |
| 42 | ||
| 43 | ||
| 15e7d615 | 44 | Description |
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45 | ----------- |
| 46 | ||
| 47 | This ioctl call informs the audio device which source shall be used for | |
| 48 | the input data. The possible sources are demux or memory. If | |
| 49 | AUDIO_SOURCE_MEMORY is selected, the data is fed to the Audio Device | |
| 50 | through the write command. | |
| 51 | ||
| 52 | ||
| 15e7d615 | 53 | Return Value |
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54 | ------------ |
| 55 | ||
| 56 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
| 57 | appropriately. The generic error codes are described at the | |
| 58 | :ref:`Generic Error Codes <gen-errors>` chapter. |