snd_pcm_lib_preallocate_pages_for_all (9) - Linux Manuals

snd_pcm_lib_preallocate_pages_for_all: pre-allocation for continuous memory type (all substreams)

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

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

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.

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