---
name: "free_dma"
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/free_dma"
---

# free\_dma(9)

free a reserved system DMA channel

## NAME

free\_dma - free a reserved system DMA channel

## SYNOPSIS

**void free\_dma(unsigned int** *dmanr***);**

## ARGUMENTS

*dmanr*

DMA channel number

## COPYRIGHT