linux-kernel - [RFC] Dell activity led WMI driver

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Message-ID: <4B675954.6000406@dell.com>
Date:	Mon, 01 Feb 2010 16:44:36 -0600
From:	Bob Rodgers <Robert_Rodgers@...l.com>
To:	Linux-kernel <linux-kernel@...r.kernel.org>,
	Matthew Garrett <mjg59@...f.ucam.org>
CC:	Michael E Brown <Michael_E_Brown@...l.com>,
	Matt Domsch <Matt_Domsch@...l.com>,
	Mario Limonciello <Mario_Limonciello@...l.com>,
	Louis Davis <Louis_Davis@...l.com>,
	Jim Dailey <Jim_Dailey@...l.com>
Subject: [RFC] Dell activity led WMI driver

My team has created a simple driver to control the Activity LED on Dell 
laptops intended for the Education market. The Activity LED is visible 
externally in the lid so Teachers can observe it from their desks. This 
driver works on the shipping Latitude 2100 series platforms as well as 
others to be released in the future. The driver follows the existing LED 
class driver API (leds-class.txt), so it will easily allow anybody to 
write an application to control the LED. Attached is dell_led.c

This has been internally reviewed, and we are ready for outside review 
and feedback. My colleagues have identified the dell-wmi module as a 
suitable container in lieu of a stand-alone module specifically for this 
driver, which makes sense, but we welcome advice. We are submitting it 
as a stand-alone module for now because that is how we developed and 
tested it. We would like this to be included upstream after it has been 
reviewed.

We look forward to your feedback. Thanks in advance.

Regards,
Bob Rodgers
Engineering Lead, Dell LED Control Project
Direct Tel: (512) 725-0665
Direct FAX: (512) 283-8994

View attachment "dell_led.c" of type "text/plain" (5016 bytes)