table of contents
| MCA_SET_DMA_IO(9) | Hardware Interfaces | MCA_SET_DMA_IO(9) |
NAME¶
mca_set_dma_io - set the port for an I/O transfer
SYNOPSIS¶
void mca_set_dma_io(unsigned int dmanr, unsigned int io_addr);
ARGUMENTS¶
dmanr
DMA channel
io_addr
an I/O port number
DESCRIPTION¶
Unlike the ISA bus DMA controllers the DMA on MCA bus can transfer with an I/O port target.
COPYRIGHT¶
| April 2023 | Kernel Hackers Manual 2.6. |