From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guillaume =?utf-8?Q?Dou=C3=A9zan-Grard?= Subject: [PATCH v2 0/4] Topstar ACPI LED Workaround Date: Sun, 29 Oct 2017 00:49:55 +0200 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Received: from mail-wm0-f66.google.com ([74.125.82.66]:55525 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751304AbdJ1WuE (ORCPT ); Sat, 28 Oct 2017 18:50:04 -0400 Content-Disposition: inline Sender: platform-driver-x86-owner@vger.kernel.org List-ID: To: Andy Shevchenko Cc: Darren Hart , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Hi Andy, Thank you for your review. Changes since the previous submission are highlighted below. On Topstar U931 Notebooks, an issue prevents the WLAN toggle key from being properly managed by the Embedded Controller and successfully disconnect the adapter. A specific ACPI method allows to toggle the WLAN LED state regardless. These are barebone laptops, sold under quite a lot of brands and configurations, with different firmwares and so on. I can only say for sure that this issue is present for all the models sold under a specific brand, that's why I'm reluctant to enable this by default with a DMI check. Thus, the new `led_workaround` option registers this LED with the corresponding subsystem, making possible to use a software-based trigger (rfkill for instance to synchronize the LED with the softkill state). Thank you for your time,