CL1B power distribution
pgf at laptop.org
pgf at laptop.org
Mon Apr 27 11:52:46 EDT 2009
chris wrote:
> Hi,
>
> > the most likely case i can think of involves being able to allow
> > USB input devices to remain alive during suspend (for wakeup
> > purposes), while powering down other devices (disks?) for power
> > savings.
>
> Hm, I think the USB controller probably turns off by necessity in
> suspend, as it does on the Geode, so I don't think keeping power
> going to individual ports would achieve anything.
perhaps i've been inferring something different than i should
from wad's initial mail, which said:
> - The SD slot and USB ports may be powered in suspend
> This is "just in case" some SD cards or USB devices don't
> handle being suspended aggressively. We will support laptop
> wakeup on interrupt from any of these ports (SD or USB).
> Under software control they may also be powered down during
> suspend.
paul
=---------------------
paul fox, pgf at laptop.org
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