Messages in this thread | | | Date | Wed, 08 Sep 2004 23:28:00 +0200 | From | Pierre Ossman <> | Subject | ISA DMA |
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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.
I've been trying to figure out how other drivers do it but I can't see what I'm missing. And the documentation doesn't cover ISA DMA.
I'm basically stuck now so I'd appreciate any tips you can give me.
Rgds Pierre Ossman - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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