Re: [patch/rft 2.6.17-rc2] swsusp resume must not device_suspend()

Pavel Machek
2006-04-27T08:20:09Z

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Hi!

> > At the least it would depend on
> > the particular state. For instance, I've got a PCI USB controller card
> > (VIA) on which the UHCI controllers support only D0 and D3cold. And
> > (although I'm not certain of this) I may have seen a report from someone
> > whose system _does_ retain power during swsusp. IIRC it was a powerbook
> > of some sort.
>
> I know that Macintoshes are good about maintaining power during STR, and
> suspect that some systems running Apple's OS will do so during "hibernate";
> they have a more complete/powerful power management framework than Linux.
>
> But last time the topic came up, I recall Pavel saying he'd never seen or
> heard of hardware that did things like that with swsusp, even when using
> "platform" (or "firmware") suspend mode.

I have seen such macine since that. NAPA seems to keep usb powered
even when off. I think I'll just use it as cellphone charger :-).

Pavel

--
Thanks, Sharp!

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