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Date: Thu, 17 Jun 2010 15:02:03 -0400 (EDT) From: Len Brown <lenb@...nel.org> To: Victor Lowther <victor.lowther@...il.com> Cc: Linux Power Management List <linux-pm@...ts.osdl.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org> Subject: Re: [linux-pm] RFC: /sys/power/policy_preference > On Jun 16, 2010, at 4:05 PM, Len Brown <lenb@...nel.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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