From mboxrd@z Thu Jan 1 00:00:00 1970 From: pavel@ucw.cz (Pavel Machek) Date: Wed, 18 Oct 2017 18:13:13 +0200 Subject: libbattery was Re: [RFC PATCH 5/5] power: generic-adc-battery: Add capacity handling In-Reply-To: <341EC461-B19F-418C-B0BF-26E1EEFAD5B7@goldelico.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> <20171018132204.GD4394@atomide.com> <20171018135656.GA26432@amd> <341EC461-B19F-418C-B0BF-26E1EEFAD5B7@goldelico.com> Message-ID: <20171018161312.GA31392@amd> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed 2017-10-18 17:52:22, H. Nikolaus Schaller wrote: > > > Am 18.10.2017 um 15:56 schrieb Pavel Machek : > > > > On Wed 2017-10-18 06:22:04, Tony Lindgren wrote: > >> * 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. > > > > Hmm. This could be as simple as providing symlink from > > /sys/class/power/userland-battery to some place writable by > > userspace... > > Well, please implement arbitrary symlinks in /sysfs... Any reason why I'd like to do that? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: Digital signature URL: