snd_pcm_lib_preallocate_pages_for_all

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

NAME

snd_pcm_lib_preallocate_pages_for_all - pre-allocation for continous 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 dependant 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.