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Re: Power consumption of RTL8187 (driver)/recommendations for low-power USB 802.11 adapter?

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On Sat, Dec 19, 2009 at 6:44 PM, Florian Zumbiehl <florz@xxxxxxxx> wrote:

> So, a base load of 3.8 W seems to be caused by any connected usb device
> preventing C3 and some 250 ms polling done by uhci_hcd, plus a bit for
> the device itself. According to
> http://www.mail-archive.com/linux-usb-users@xxxxxxxxxxxxxxxxxxxxx/msg19354.html
> (why aren't there any message IDs on any of those archive sites, BTW?)
> that's the expected behaviour.

Presumably power-management changes have a time granuarity i.e. if you
make the CPU busy for one moment, it would stay in the higher-power
state for a while before dropping down? That's the standard thing to
do for prevent the power state being changed too often (and have bad
effects of some sort)?
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