---
name: "snd_pcm_lib_default_mmap"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/snd_pcm_lib_default_mmap"
---

# snd\_pcm\_lib\_default\_mmap(9)

Default PCM data mmap function

## NAME

snd\_pcm\_lib\_default\_mmap - Default PCM data mmap function

## SYNOPSIS

**int snd\_pcm\_lib\_default\_mmap(struct snd\_pcm\_substream \*** *substream***, struct vm\_area\_struct \*** *area***);**

## ARGUMENTS

*substream*

PCM substream

*area*

VMA

## DESCRIPTION

This is the default mmap handler for PCM data. When mmap pcm\_ops is NULL, this function is invoked implicitly.

## COPYRIGHT