Subject: libbattery was Re: [RFC PATCH 5/5] power: generic-adc-battery: Add capacity handling

From: [email-masked] (Tony Lindgren)
Date: Wed, 18 Oct 2017 06:22:04 -0700

* H. Nikolaus Schaller <[email-masked]> [171018 05:49]:
> > Am 18.10.2017 um 14:28 schrieb Pavel Machek <[email-masked]>:
> > 
> > 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