At 7:23pm +0200 3/30/03, Pavel Machek wrote:
> > And actually what I have found that on my development P3/1GHz system
>> every inw() takes more that 3us. I wasn't measuring outw() yet - but
>> I do not expect its timing to be better.
>
>inw/outw *is* slow. Memory map your
>registers to speed it up.
Shouldn't be *that* slow, though, especially over PCI, unless the
device in question is taking that long to respond--in which case
memory mapping won't help.
-- /Jonathan Lundell. - 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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