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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