> > I can see the reasoning where the device just doesn't function properly
> > with DMA at all (like on some Compact Flash-to-IDE adapters where the
> > card claims to support DMA but the DMA lines aren't wired through in the
> > adapter properly). In that case not disabling DMA would render it
> > useless. The IDE layer could keep track of whether DMA was previously
> > working on that device however, and not disable DMA on reset if it had
> > previously been working.
>
> Definitely. Where these things get sticky is in defining "DMA was working".
> And keeping track of it separately for reads and writes.
Hey guys, keep the CC intact, I missed these.
Yes, all the above points are valid and right, I think.
As a user we know if DMA is OK on a ide device, right? Then let user have
option to set it permanent, else carry on as the code does now when idex
needs a reset.
Nick.
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