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Date: Tue, 7 Feb 2006 17:20:24 +0000
From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Michael_E_Brown@Dell.com
Cc: akpm@osdl.org, Matt_Domsch@Dell.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [RESEND] Add Dell laptop backlight brightness display
Message-ID: <20060207172024.GA6431@srcf.ucam.org>
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On Tue, Feb 07, 2006 at 10:34:31AM -0600, Michael_E_Brown@Dell.com wrote:
> You can get and set laptop brighness on Dell with the proper SMI call.

Oh, heavens. Could you people (and here I include pretty much everyone 
who manufactures laptops) please (please!) just implement the ACPI video 
extension? We're going to end up having to ship a 200K library for 
each and every laptop manufacturer who's decided to implement basic 
functionality in a proprietary manner, and it's going to make me cry.

(Which SMI do I need for brightness control? The libsmbios docs seem to 
be remarkably quiet on what functionality is actually available, and I'm 
not keen on calling things randomly :))

-- 
Matthew Garrett | mjg59@srcf.ucam.org
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