linux-kernel - Re: [linux-pm] Re : [HELP] Power management for embedded system

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Message-ID: <20060904215647.GA1975@elf.ucw.cz>
Date:	Mon, 4 Sep 2006 23:56:47 +0200
From:	Pavel Machek <pavel@....cz>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	Richard Purdie <rpurdie@...ys.net>,
	moreau francis <francis_moreau2000@...oo.fr>,
	Russell King <rmk+lkml@....linux.org.uk>,
	linux-pm@...ts.osdl.org, linux-kernel@...r.kernel.org
Subject: Re: [linux-pm] Re : [HELP] Power management for embedded system

Hi!

> > It would be nice to move that to some arch independent generic
> > implementation of these things and to leave the APM emulation behind.
> > The battery information should be a sysfs class (see the backlight/led
> > classes as examples of sysfs classes). The suspend/resume event handling
> > would be something new as far as I know and ideally should support
> > suspending/resuming individual sections of device hardware as well as
> > the whole system.
> 
> Triggering suspend/resume is already generic in the form of the 
> /sys/power/state interface. There's been discussion of producing a 
> generic battery class lately. There's some trend towards tying suspend 
> requests into the input layer, but how appropriate that is may
> > depend on 

suspend requests into input layer.. No, I do not think Dmitry will
allow us to do that.

Yes, we definitely want some kind of "generic battery" layer.

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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