linux-kernel - Re: [GIT PATCH] ACPI patches for 2.6.21

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Message-ID: <20070306210959.GB3843@elf.ucw.cz>
Date:	Tue, 6 Mar 2007 22:09:59 +0100
From:	Pavel Machek <pavel@....cz>
To:	Len Brown <lenb@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [GIT PATCH] ACPI patches for 2.6.21 - part II (resend)

Hi!

> > > commit 4465857d5f99079bae00621626adf74ed8256296
> > > Author: Mattia Dongili <malattia@...ux.it>
> > > Date:   Sat Jan 13 23:04:39 2007 +0100
> > > 
> > >     sony_acpi: Add lanpower and audiopower controls
> > >     
> > >     audiopower works well on my SZ72B so it's not marked has "debug" while lanpower
> > >     has at least one report of not resuming power happily so morked as "debug"
> > >     
> > >     Signed-off-by: Mattia Dongili <malattia@...ux.it>
> > >     Signed-off-by: Len Brown <len.brown@...el.com>
> > 
> > What is interface to these? It would be nice to automagically disable
> > audiopower when sound device is closed, and automagically power down
> > lan on ifconfig ... down.
> 
> the audiopower is basically a _PS3/_PS0 switch for the device, while the
> lanpower plays with the embedded controller to powerdown/powerup.
> 
> Now, unfortunately those methods are attached to a fake device in the
> DSDT and afaict there's no way to tell which real device they are
> playing with (except by inspecting the method implementations).

> Well of course iff there's only _one_ sound card and _one_ nic you can
> easily guess it :)

Hmm... you are on sony notebook... right? That means it is very likely
it has just one sound card, and just one ethernet, no?

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