linux-kernel - Re: [PATCH 2.6.18-mm2] acpi: add backlight support to the sony

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Message-ID: <20061002003908.GA18707@lists.us.dell.com>
Date:	Sun, 1 Oct 2006 19:39:08 -0500
From:	Matt Domsch <Matt_Domsch@...l.com>
To:	Andrew Morton <akpm@...l.org>
Cc:	Alessandro Guido <alessandro.guido@...il.com>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	len.brown@...el.com, jengelh@...ux01.gwdg.de, gelma@...ma.net,
	ismail@...dus.org.tr
Subject: Re: [PATCH 2.6.18-mm2] acpi: add backlight support to the sony_acpi driver

On Sun, Oct 01, 2006 at 05:19:12PM -0700, Andrew Morton wrote:
> On Sat, 30 Sep 2006 19:08:10 +0200
> Alessandro Guido <alessandro.guido@...il.com> wrote:
> 
> > Make the sony_acpi use the backlight subsystem to adjust brightness value
> > instead of using the /proc/sony/brightness file.
> > (Other settings will still have a /proc/sony/... entry)
> 
> umm, OK, but now how do I adjust my screen brightness? ;)
> 
> I assume that cute userspace applications for controlling backlight
> brightness via the generic backlight driver either exist or are in
> progress?  What is the status of that?

For Dell laptops, the dellLcdBrightness app is included in the
libsmbios-bin package (http://linux.dell.com/libsmbios/main/ and
http://linux.dell.com/libsmbios/main/yum.html for the yum repo).  It's
entirely userspace.

-- 
Matt Domsch
Software Architect
Dell Linux Solutions linux.dell.com & www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com
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