snd_pcm_lib_malloc_pages

Langue: en

Autres versions - même langue

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

Section: 9 (Appels noyau Linux)

NAME

snd_pcm_lib_malloc_pages - allocate the DMA buffer

SYNOPSIS

int snd_pcm_lib_malloc_pages(struct snd_pcm_substream * substream, size_t size);

ARGUMENTS

substream

the substream to allocate the DMA buffer to

size

the requested buffer size in bytes

DESCRIPTION

Allocates the DMA buffer on the BUS type given earlier to snd_pcm_lib_preallocate_xxx_pages.

Returns 1 if the buffer is changed, 0 if not changed, or a negative code on failure.