From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751539AbdE3NWN (ORCPT ); Tue, 30 May 2017 09:22:13 -0400 Received: from mail-qt0-f173.google.com ([209.85.216.173]:33255 "EHLO mail-qt0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751037AbdE3NWM (ORCPT ); Tue, 30 May 2017 09:22:12 -0400 MIME-Version: 1.0 In-Reply-To: <264a8ced-4336-06b9-d760-babc08ccde5c@angelsl.xyz> References: <264a8ced-4336-06b9-d760-babc08ccde5c@angelsl.xyz> From: Andy Shevchenko Date: Tue, 30 May 2017 16:22:10 +0300 Message-ID: Subject: Re: [PATCH] platform/x86: ideapad-laptop: Expose conservation mode switch To: Hao Wei Tee Cc: Platform Driver , "linux-kernel@vger.kernel.org" , Andy Shevchenko , Darren Hart , Ike Panhc Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, May 28, 2017 at 4:47 PM, Hao Wei Tee wrote: > On 5/27/17 3:31 PM, Hao Wei Tee wrote: >> This exposes the battery conservation mode present on some (?) IdeaPads. >> The mode is set by calling ACPI method SBMC with argument 3 (on) or >> 5 (off). Status is reported in bit 5 of the return value of ACPI method >> GBMD. >> >> This patch was written based on an IdeaPad U430p. I'm not sure if the ACPI >> methods are the same across all IdeaPads, so it would be great if this got more >> testing across other models before it's merged. > > I got someone to test on an IdeaPad Y510p. It works on that too. Do we have any other option that expose something via sysfs? -- With Best Regards, Andy Shevchenko