Pre-allocation for continuous memory type (all substreams)
int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm * pcm, int type, void * data, size_t size, size_t max);
pcm
the 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
Do pre-allocation to all substreams of the given pcm for the specified DMA type.
Zero if successful, or a negative error code on failure.