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From: Pavel Machek <pavel@ucw.cz>
To: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: Tony Lindgren <tony@atomide.com>,
	Sebastian Reichel <sebastian.reichel@collabora.co.uk>,
	pali.rohar@gmail.com, sre@kernel.org,
	kernel list <linux-kernel@vger.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	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 <marek.belisko@open-nandra.com>,
	robh+dt@kernel.org, linux-pm@vger.kernel.org,
	Marek Belisko <marek.belisko@gmail.com>
Subject: Re: libbattery was Re: [RFC PATCH 5/5] power: generic-adc-battery: Add capacity handling
Date: Wed, 18 Oct 2017 18:13:13 +0200	[thread overview]
Message-ID: <20171018161312.GA31392@amd> (raw)
In-Reply-To: <341EC461-B19F-418C-B0BF-26E1EEFAD5B7@goldelico.com>

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On Wed 2017-10-18 17:52:22, H. Nikolaus Schaller wrote:
> 
> > Am 18.10.2017 um 15:56 schrieb Pavel Machek <pavel@ucw.cz>:
> > 
> > On Wed 2017-10-18 06:22:04, Tony Lindgren wrote:
> >> * H. Nikolaus Schaller <hns@goldelico.com> [171018 05:49]:
> >>>> Am 18.10.2017 um 14:28 schrieb Pavel Machek <pavel@ucw.cz>:
> >>>> 
> >>>> 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

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WARNING: multiple messages have this Message-ID (diff)
From: pavel@ucw.cz (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: libbattery was Re: [RFC PATCH 5/5] power: generic-adc-battery: Add capacity handling
Date: Wed, 18 Oct 2017 18:13:13 +0200	[thread overview]
Message-ID: <20171018161312.GA31392@amd> (raw)
In-Reply-To: <341EC461-B19F-418C-B0BF-26E1EEFAD5B7@goldelico.com>

On Wed 2017-10-18 17:52:22, H. Nikolaus Schaller wrote:
> 
> > Am 18.10.2017 um 15:56 schrieb Pavel Machek <pavel@ucw.cz>:
> > 
> > On Wed 2017-10-18 06:22:04, Tony Lindgren wrote:
> >> * H. Nikolaus Schaller <hns@goldelico.com> [171018 05:49]:
> >>>> Am 18.10.2017 um 14:28 schrieb Pavel Machek <pavel@ucw.cz>:
> >>>> 
> >>>> 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
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  reply	other threads:[~2017-10-18 16:13 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-01 20:55 [RFC PATCH 0/5] Add formula for LiIon batteries to compute capacity Marek Belisko
2017-08-01 20:55 ` [RFC PATCH 1/5] dt-bindings: power: Add battery types Marek Belisko
2017-08-02 11:38   ` Pavel Machek
2017-08-02 11:43   ` Pavel Machek
2017-08-02 11:47     ` Belisko Marek
2017-08-01 20:55 ` [RFC PATCH 2/5] power: generic-adc-battery: Parse more properties from DT Marek Belisko
2017-08-02 11:56   ` Pavel Machek
2017-08-02 11:57     ` Belisko Marek
2017-08-29  9:45   ` Sebastian Reichel
2017-08-01 20:55 ` [RFC PATCH 3/5] power/generic-adc-battery: Add support for temperature and add check for charge from iio current channel Marek Belisko
2017-08-29  9:54   ` Sebastian Reichel
2017-08-01 20:55 ` [RFC PATCH 4/5] power: Add formula for computing LiIon State of Charge from Voltage Marek Belisko
2017-08-01 20:55 ` [RFC PATCH 5/5] power: generic-adc-battery: Add capacity handling Marek Belisko
2017-08-29 10:11   ` Sebastian Reichel
2017-09-08 11:32     ` libbattery was " Pavel Machek
2017-09-08 13:15       ` H. Nikolaus Schaller
2017-09-08 13:15         ` H. Nikolaus Schaller
2017-10-18 12:28       ` Pavel Machek
2017-10-18 12:28         ` Pavel Machek
2017-10-18 12:28         ` Pavel Machek
2017-10-18 12:48         ` H. Nikolaus Schaller
2017-10-18 12:48           ` H. Nikolaus Schaller
2017-10-18 12:48           ` H. Nikolaus Schaller
2017-10-18 13:09           ` Pavel Machek
2017-10-18 13:09             ` Pavel Machek
2017-10-18 13:22           ` Tony Lindgren
2017-10-18 13:22             ` Tony Lindgren
2017-10-18 13:56             ` Pavel Machek
2017-10-18 13:56               ` Pavel Machek
2017-10-18 15:52               ` H. Nikolaus Schaller
2017-10-18 15:52                 ` H. Nikolaus Schaller
2017-10-18 16:13                 ` Pavel Machek [this message]
2017-10-18 16:13                   ` Pavel Machek
2017-10-18 16:48                   ` H. Nikolaus Schaller
2017-10-18 16:48                     ` H. Nikolaus Schaller
2017-10-18 15:47             ` H. Nikolaus Schaller
2017-10-18 15:47               ` H. Nikolaus Schaller
2017-10-18 15:47               ` H. Nikolaus Schaller
2017-10-19 16:24               ` Tony Lindgren
2017-10-19 16:24                 ` Tony Lindgren
2017-10-19 16:55                 ` H. Nikolaus Schaller
2017-10-19 16:55                   ` H. Nikolaus Schaller
2017-10-19 17:06                   ` Tony Lindgren
2017-10-19 17:06                     ` Tony Lindgren
2017-10-19 17:20                     ` H. Nikolaus Schaller
2017-10-19 17:20                       ` H. Nikolaus Schaller
2017-10-19 17:33                 ` Ladislav Michl
2017-10-19 17:33                   ` Ladislav Michl

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