snd_pcm_lib_malloc_pages(9) centos man page | unix.com

SND_PCM_LIB_MALLOC_P(9) 					      PCM API						   SND_PCM_LIB_MALLOC_P(9)

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.

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

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   SND_PCM_LIB_MALLOC_P(9)