linux-kernel - Re: [PATCH 3/3] thinkpad_acpi: add LED quirks of models which don't have EC controllable LEDs

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Message-Id: <1370636175.13515.140661241274985.19126A97@webmail.messagingengine.com>
Date:	Fri, 07 Jun 2013 17:16:15 -0300
From:	Henrique de Moraes Holschuh <hmh@....eng.br>
To:	Adam Lee <adam.lee@...onical.com>,
	Matthew Garrett <matthew.garrett@...ula.com>
Cc:	linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
	ibm-acpi-devel@...ts.sourceforge.net,
	Alex Hung <alex.hung@...onical.com>, Bjorn Mork <bjorn@...k.no>
Subject: Re: [PATCH 3/3] thinkpad_acpi: add LED quirks of models which don't have
 EC controllable LEDs

Can you get me the ACPI interface documentation?  It should be simple to get it, but I haven't emailed the Lenovo BIOS engineers for some time.

Basically, create a new LED method in thinkpad-acpi, lock it down to vendor lenovo, detect the new interfaces, and only check the two-argument LED one if the newer ones aren't found.

Not supporting the old /proc interface on new thinkpads is fine.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh
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