linux-kernel - Re: [suspend/resume] Re: userspace notification from module

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Date:	Sat, 16 Jan 2010 23:25:29 +0100
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Stanislav Brabec <utx@...guin.cz>,
	Eric Miao <eric.y.miao@...il.com>,
	Bart?omiej Zimo? <uzi18@...pl>, Andy Walls <awalls@...ix.net>,
	Daniel Borkmann <danborkmann@...glemail.com>,
	linux-kernel@...r.kernel.org, rpurdie@...ys.net, lenz@...wisc.edu,
	Dirk@...er-online.de, arminlitzel@....de,
	Cyril Hrubis <metan@....cz>, thommycheck@...il.com,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	dbaryshkov@...il.com, omegamoon@...il.com,
	zaurus-devel@...ts.linuxtogo.org
Subject: Re: [suspend/resume] Re: userspace notification from module

> > IMHO it should just plain shutdown in that case.  Suspending doesn't really
> > solve the problem, because the battery is going to drain still.  Unless you
> > mean suspend=hibernate, but I guess you don't.

BTW I was talking spitz before, but there's collie, too. It was
shipped in configuration where all user data was in RAM and RAMdisk --
no writable flash. On such machine, shutdown is never option. (And
yes, such design was very common in windowsCE days).

Spitz got disk, but inherited that powermanagement design; and it
works very well.

And now, if you want collie for a year (or two), you can have
mine... it still works and battery still lasted for 5 hours 2 years
ago -- not bad for 10 year old battery. You'll note that it is very
different design from PC.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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