snd_pcm_lib_preallocate_pages(9)

snd_pcm_lib_preallocate_pages9

Pre-allocation for the given dma type

Usage

int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream * substream, int type, struct device * data, size_t size, size_t max);

Arguments

substream

the pcm substream 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

Overview

Do pre-allocation for the given DMA buffer type.

Return

Zero if successful, or a negative error code on failure.

Releases

6 releases since Debian 4.0 (Etch); the text changed 5 times.

  1. 4.0
  2. 5.0
  3. 6.0
  4. 7
  5. 8
  6. 9

From linux-manual-4.9 4.9.228-1 in Debian 9 (Stretch). Parsed by carta from the page's man source.