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.