---
name: "snd_pcm_substream_to_dma_direction"
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_substream_to_dma_direction"
---

# snd\_pcm\_substream\_to\_dma\_direction(9)

Get dma\_transfer\_direction for a PCM substream

## NAME

snd\_pcm\_substream\_to\_dma\_direction - Get dma\_transfer\_direction for a PCM substream

## SYNOPSIS

**enum dma\_transfer\_direction snd\_pcm\_substream\_to\_dma\_direction(const struct snd\_pcm\_substream \*** *substream***);**

## ARGUMENTS

*substream*

PCM substream

## COPYRIGHT