From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Pavel Machek <pavel@ucw.cz>, omegamoon@gmail.com
Subject: Re: [suspend/resume] Re: userspace notification from module
Date: Sat, 16 Jan 2010 23:21:53 +0100
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       Daniel Borkmann <danborkmann@googlemail.com>,
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       Dirk@opfer-online.de, arminlitzel@web.de, Cyril Hrubis <metan@ucw.cz>,
       thommycheck@gmail.com,
       "linux-arm-kernel" <linux-arm-kernel@lists.infradead.org>,
       dbaryshkov@gmail.com, eric.y.miao@gmail.com, utx@penguin.cz,
       zaurus-devel@www.linuxtogo.org
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On Saturday 16 January 2010, Pavel Machek wrote:
> Hi!
> 
> > > Agreed, but so what? On PC, machine would power off at that
> > > point. That would surprise the apps, too.
> > > 
> > > Basically new enough userland should not make battery run low enough
> > > for either emergency power off or emergency suspend.
> > 
> > I wonder how it is supposed to achieve that without knowing the current battery
> > status.  Do you mean it should poll the battery driver?
> 
> That's besides point, is it?

Well, mentioned that first. :-)

> Usual kernel<->user interfaces should apply here.

And we're talking about the design of these, aren't we?  The notification about
the critical battery status sent to the user space is a part of the kernel-user
space interface too, after all.

Rafael
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