snd_pcm_lib_preallocate_pages_for_all(9) centos man page | unix.com

SND_PCM_LIB_PREALLOC(9) 					      PCM API						   SND_PCM_LIB_PREALLOC(9)

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.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   SND_PCM_LIB_PREALLOC(9)