Power-Mgt (Was: Re: cvs commit: src/sys/i386/cpufreq est.c )

[Poul-Henning Kamp]

>To avoid lots of code duplication I think we would need to provide some sort 
>of "idle" device support in new-bus.  Possibly something like this:

We need different levels of "active" also, EnergyStar requires machines
to reduce ethernet speed from GE to 100M when idle, (this saves approx
2W, 1W in either end of the cable).

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