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DateWed, 27 Jul 2005 10:00:51 +0200
FromPavel Machek <>
SubjectRe: Power consumption HZ250 vs. HZ1000
Hi!

> > USB devices prevent entering C3 and any interesting powersaving,
> > try without USB...
>
> Why do USB devices prevent C3? If it was because of the timer polling
> in the root hub, I believe that should be fixed now.
>
> Or is there some other reason?

Yes. UHCI zas keeps doing DMA all the time.... It can be worked
around, but it means proper usb powermanagment support.
Pavel
--
teflon -- maybe it is a trademark, but it should not be.
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