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MCA_SET_DMA_MODE(9) Hardware Interfaces MCA_SET_DMA_MODE(9)

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.

COPYRIGHT

May 2024 Kernel Hackers Manual 2.6.