From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: libbattery was Re: [RFC PATCH 5/5] power: generic-adc-battery: Add capacity handling Date: Wed, 18 Oct 2017 06:22:04 -0700 Message-ID: <20171018132204.GD4394@atomide.com> References: <1501620926-22669-1-git-send-email-marek.belisko@open-nandra.com> <1501620926-22669-6-git-send-email-marek.belisko@open-nandra.com> <20170829101147.debhadzyfrxhkrvt@earth> <20170908113231.GJ18365@amd> <20171018122804.GA14376@amd> <61BFA8AF-657A-4AD7-A7AC-3E5DC3B7E83D@goldelico.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8BIT Return-path: Received: from muru.com ([72.249.23.125]:44756 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750975AbdJRNWL (ORCPT ); Wed, 18 Oct 2017 09:22:11 -0400 Content-Disposition: inline In-Reply-To: <61BFA8AF-657A-4AD7-A7AC-3E5DC3B7E83D@goldelico.com> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: "H. Nikolaus Schaller" Cc: Pavel Machek , Sebastian Reichel , pali.rohar@gmail.com, sre@kernel.org, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, khilman@kernel.org, aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com, patrikbachan@gmail.com, serge@hallyn.com, abcloriens@gmail.com, clayton@craftyguy.net, martijn@brixit.nl, sakari.ailus@linux.intel.com, Marek Belisko , robh+dt@kernel.org, linux-pm@vger.kernel.org, Marek Belisko * H. Nikolaus Schaller [171018 05:49]: > > Am 18.10.2017 um 14:28 schrieb Pavel Machek : > > > > So I started something, it is at. > > > > https://github.com/pavelmachek/libbattery > > > > My battery on n900 is currently uncalibrated (and charging), still it > > gets some kind of estimation: > > > > Battery -1 % > > Seconds -1 > > State 1 > > Voltage 3.88 V > > Battery 63 % > > > > Of course, there's a lot more work to be done. > > Nice start but not a solution to our problem. > > Our problem is that people simply expect that for example https://packages.debian.org/wheezy/xfce/xfce4-battery-plugin > displays the battery percentage. I think we could make things compatible with various battery apps by having libbattery write back the capacity percentage and time remaining to the kernel driver via sysfs or a dev entry. Then the kernel interface can just display the data to whatever apps. Regards, Tony