REQUEST_DMA(9) Hardware Interfaces REQUEST_DMA(9)NAMErequest_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
COPYRIGHTKernel Hackers Manual 2.6. November 2013 REQUEST_DMA(9)