Messages in this thread | | | Subject | Re: ISA DMA | From | Alan Cox <> | Date | Wed, 08 Sep 2004 23:27:15 +0100 |
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On Mer, 2004-09-08 at 22:28, Pierre Ossman wrote: > I'm trying to figure out how to do ISA DMA transfers. I can't figure out > how to satisfy all the requirements the ISA DMA controller sets. I've > set a DMA mask of 0x00ffffff but mappings end up above the 16MB limit > nonetheless. And I have no idea how to keep transfers within the same > 64k boundary.
drivers/net/lance.c is a pretty good worked example of driving the old ISA bus grunge.
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