Messages in this thread |  | | | Date | Thu, 17 Jun 2010 15:02:03 -0400 (EDT) | | From | Len Brown <> | | Subject | Re: [linux-pm] RFC: /sys/power/policy_preference |
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> On Jun 16, 2010, at 4:05 PM, Len Brown <lenb@kernel.org> wrote: > > > Create /sys/power/policy_preference, giving user-space > > the ability to express its preference for kernel based > > power vs. performance decisions in a single place. > > > > This gives kernel sub-systems and drivers a central place > > to discover this system-wide policy preference. > > It also allows user-space to not have to be updated > > every time a sub-system or driver adds a new power/perf knob. > > I would prefer documenting all the current knobs and adding them to pm-utils > so that pm-powersave knows about and can manage them. Once that is done, > creating arbitrary powersave levels should be fairly simple.
The idea here is to not require user-space to need updating whenever a future knob is invented. We can do a great job at documenting the past, but a poor job of documenting the future:-)
cheers, Len Brown, Intel Open Source Technolgy Center
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