linux-kernel - Re: Hibernation considerations

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Message-ID: <87ps2lojlc.fsf@jbms.ath.cx>
Date:	Sat, 21 Jul 2007 11:35:43 -0400
From:	Jeremy Maitin-Shepard <jbms@....edu>
To:	Pavel Machek <pavel@....cz>
Cc:	david@...g.hm, "Rafael J. Wysocki" <rjw@...k.pl>,
	Alan Stern <stern@...land.harvard.edu>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Huang\, Ying" <ying.huang@...el.com>,
	Kyle Moffett <mrmacman_g4@....com>,
	Nigel Cunningham <nigel@...el.suspend2.net>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	Al Boldi <a1426z@...ab.com>
Subject: Re: Hibernation considerations

Pavel Machek <pavel@....cz> writes:

[snip]

> So it will be break at least battery status and "AC plugged in"
> status, because those are handled by ACPI and we do not know how to
> control them by hand.

It seems that it should be possible to initialize ACPI as if the system
just booted up normally.  Then battery status and such should be
correct, since they are correct after normal initialization.

It should be possible to make hibernate look just like a reboot to all
of the devices, including ACPI stuff.

-- 
Jeremy Maitin-Shepard
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