other versions
- stretch 4.9.168-1
SND_PCM_LIB_PREALLOC(9) | PCM API | 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.RETURN¶
Zero if successful, or a negative error code on failure.COPYRIGHT¶
April 2019 | Kernel Hackers Manual 4.9. |