centos man page for request_dma

REQUEST_DMA(9)							Hardware Interfaces						    REQUEST_DMA(9)

NAME
       request_dma - request and reserve a system DMA channel

SYNOPSIS
       int request_dma(unsigned int dmanr, const char * device_id);

ARGUMENTS
       dmanr
	   DMA channel number

       device_id
	   reserving device ID string, used in /proc/dma

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							    REQUEST_DMA(9)