1SND_PCM_LIB_PREALLOC(9) PCM API SND_PCM_LIB_PREALLOC(9)
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6 snd_pcm_lib_preallocate_pages_for_all - pre-allocation for continous
7 memory type (all substreams)
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10 int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm * pcm,
11 int type, void * data,
12 size_t size, size_t max);
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15 pcm
16 the pcm instance
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18 type
19 DMA type (SNDRV_DMA_TYPE_*)
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21 data
22 DMA type dependant data
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24 size
25 the requested pre-allocation size in bytes
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27 max
28 the max. allowed pre-allocation size
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31 Do pre-allocation to all substreams of the given pcm for the specified
32 DMA type.
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34 Returns zero if successful, or a negative error code on failure.
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37Kernel Hackers Manual 2.6. November 2011 SND_PCM_LIB_PREALLOC(9)