---
name: "snd_dmaengine_pcm_request_channel"
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_dmaengine_pcm_request_channel"
---

# snd\_dmaengine\_pcm\_request\_channel(9)

Request channel for the dmaengine PCM

## NAME

snd\_dmaengine\_pcm\_request\_channel - Request channel for the dmaengine PCM

## SYNOPSIS

**struct dma\_chan \* snd\_dmaengine\_pcm\_request\_channel(dma\_filter\_fn** *filter\_fn***, void \*** *filter\_data***);**

## ARGUMENTS

*filter\_fn*

Filter function used to request the DMA channel

*filter\_data*

Data passed to the DMA filter function

## DESCRIPTION

Returns NULL or the requested DMA channel.

This function request a DMA channel for usage with dmaengine PCM.

## COPYRIGHT