Date: Thu, 10 Jan 2008 16:55:35 GMT From: John Baldwin <jhb@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 132974 for review Message-ID: <200801101655.m0AGtZqn043424@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=132974 Change 132974 by jhb@jhb_zion on 2008/01/10 16:54:55 Update. Affected files ... .. //depot/projects/power/notes#12 edit Differences ... ==== //depot/projects/power/notes#12 (text+ko) ==== @@ -69,3 +69,15 @@ The second stage will be to make the powering off of devices more automated. This is still in early design stage. It may involve a powerd, it may involve intelligence in the kernel. + +Other stuff: + +- Make the DPMS support in acpi_video a separate driver that attaches to + vgapci0 +- Automated idle device power management + - Basic idea is that when a device is idle for a specified amount of time, + it should power down into D1 or D2. For example, NICs can power down + when they have no link until they get link. Audio controllers can power + down when they aren't open, etc. + - Want to avoid having lots of scaffolding in device drivers. So we need + to come up with some models for some frameworks.
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