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SND_PCM_LIB_PREALLOC(9) | Sound Devices | SND_PCM_LIB_PREALLOC(9) |
NAME¶
snd_pcm_lib_preallocate_pages_for_all - pre-allocation for continuous memory type (all substreams)SYNOPSIS¶
int
snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm * pcm,
int type, void * data,
size_t size, size_t max);
ARGUMENTS¶
pcmthe pcm instance
type
DMA type (SNDRV_DMA_TYPE_*)
data
DMA type dependent data
size
the requested pre-allocation size in
bytes
max
the max. allowed pre-allocation size
DESCRIPTION¶
Do pre-allocation to all substreams of the given pcm for the specified DMA type. Returns zero if successful, or a negative error code on failure.COPYRIGHT¶
March 2016 | Kernel Hackers Manual 3.2. |