> The PCI/ISA chipset on the ASUS board that I have supports better DMA
> for ISA devices, so that you can DMA anywhere in the address space,
> even from or to an ISA device.  I think this is a pretty common
> chipset, and there may be similar functionality available in some
> modern EISA chipset - maybe support for this stuff should be
> considered along with bounce buffers?

Actually, as far as i'm aware, _ALL_ EISA chipsets support it.

ISA DMA != EISA DMA.  did i mention that the current interface was
broken?  8-)


chris