Messages in this thread | | | Date | Mon, 16 Mar 2009 00:24:18 -0400 (EDT) | From | Len Brown <> | Subject | Re: [PATCH 1/1] cpufreq: eeepc 900 frequency scaling driver |
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On Tue, 2 Dec 2008, Pavel Machek wrote:
> On Tue 2008-12-02 16:15:21, Matthew Garrett wrote: > > On Sun, Nov 23, 2008 at 07:04:09PM +0100, Pavel Machek wrote: > > > > > Is this really needed? Could we simply talk to the cpu directly, > > > without help of ACPI? > > > > No. The ACPI write ends up talking to the embedded controller and some > > io ports. > > Oops... I always knew that eee-s are broken by design (reporting > battery percent as mWh, etc...) but I did not realize how bad it > is. (ACPI has perfectly standard cpu frequency scaling interface, even > if it is not used too often these days....)
Huh?
What cpufreq driver is deployed more broadly than acpi-cpufreq? AFAIK, Linux uses it on nearly every ACPI compliant Intel-based system that has frequency scaling.
-Len
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