mca_set_dma_mode

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

NAME

mca_set_dma_mode - set the DMA mode

SYNOPSIS

void mca_set_dma_mode(unsigned int dmanr, unsigned int mode);

ARGUMENTS

dmanr

DMA channel

mode

mode to set

DESCRIPTION

The DMA controller supports several modes. The mode values you can set are-

MCA_DMA_MODE_READ when reading from the DMA device.

MCA_DMA_MODE_WRITE to writing to the DMA device.

MCA_DMA_MODE_IO to do DMA to or from an I/O port.

MCA_DMA_MODE_16 to do 16bit transfers.