From: Alessandro Di Marco <dmr@gmx.it>
To: Pavel Machek <pavel@ucw.cz>
Cc: linux-kernel@vger.kernel.org, vojtech@suse.cz
Subject: Re: [ANNOUNCE] System Inactivity Monitor v1.0
References: <877ivkrv5s.fsf@gmx.it> <20070119101103.GA5730@ucw.cz>
	<877ivfi60i.fsf@gmx.it> <20070123094114.GE6033@ucw.cz>
	<87wt3dhlte.fsf@gmx.it> <20070123163442.GA18662@elf.ucw.cz>
Date: Tue, 23 Jan 2007 18:11:38 +0100
In-Reply-To: <20070123163442.GA18662@elf.ucw.cz> (Pavel Machek's message of "Tue\, 23 Jan 2007 17\:34\:42 +0100")
Message-ID: <87lkjthdmd.fsf@gmx.it>
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Pavel Machek <pavel@ucw.cz> writes:

   >    But I still believe it can be out.
   >
   > Do you believe it could be a user-space daemon or what?

   Yes, what prevents userspace daemon watching /dev/input/event* to
   provide this functionality?

Well that was my first attempt. Just an hack, but it works. Nonetheless I found
the kernel-level approach fitting better the problem: it is elegant, simpler
and more efficient than user-level one.

For example, the subsystem provides at kernel-level handy
hiberante/suspend/resume callbacks that I use to turn on/off the timer,
avoiding the time-warp problem. Doing that at user-level would be far more
messy...

Bye

--
An age is called Dark not because the light fails to shine, but because people
refuse to see it. - James Michener, Space
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