snd_dmaengine_pcm_request_channel
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## 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.

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