linux-kernel - Re: [PATH] misc,acpi,backlight: Compal Laptop Extras (2nd try)

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Message-Id: <1202376563.9519.12.camel@dax.rpnet.com>
Date:	Thu, 07 Feb 2008 09:29:23 +0000
From:	Richard Purdie <rpurdie@...ys.net>
To:	Cezary Jackiewicz <cezary.jackiewicz@...il.com>
Cc:	Andrew Morton <akpm@...l.org>,
	Henrique de Moraes Holschuh <hmh@....eng.br>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATH] misc,acpi,backlight: Compal Laptop Extras (2nd try)

On Tue, 2008-02-05 at 18:38 +0100, Cezary Jackiewicz wrote:
> From: Cezary Jackiewicz <cezary.jackiewicz@...il.com>
> 
> This is driver for Compal Laptop: FL90/IFL90, based on MSI
> driver.
> 
> This driver exports a few files in /sys/devices/platform/compal-laptop/:
>  lcd_level - screen brightness: contains a single integer in the range 0..7 (rw)
>  wlan - wlan subsystem state: contains 0 or 1 (rw)
>  bluetooth - bluetooth subsystem state: contains 0 or 1 (rw)
>  raw - raw value taken from embedded controller register (ro)
> 
> In addition to these platform device attributes the driver registers itself
> in the Linux backlight control subsystem and is available to userspace under
> /sys/class/backlight/compal-laptop/.
> 
> Based on 2.6.24

If you use the backlight class do we really need to duplicate the
lcd_level file under sysfs too?

Richard

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