> Am 18.10.2017 um 18:13 schrieb Pavel Machek <pavel@xxxxxx>: > > On Wed 2017-10-18 17:52:22, H. Nikolaus Schaller wrote: >> >>> Am 18.10.2017 um 15:56 schrieb Pavel Machek <pavel@xxxxxx>: >>> >>> On Wed 2017-10-18 06:22:04, Tony Lindgren wrote: >>>> * H. Nikolaus Schaller <hns@xxxxxxxxxxxxx> [171018 05:49]: >>>>>> Am 18.10.2017 um 14:28 schrieb Pavel Machek <pavel@xxxxxx>: >>>>>> >>>>>> 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? I don't know if you like it or not. But it appears to be a strict necessity to make your proposal of "as simple as providing symlink from /sys/class/power/userland-battery to some place writable by userspace" work. So if a different solution to provide /sys/class/power/*-battery is possible, it should probably be preferred and nobody will ask you to do something you don't like. BR, Nikolaus
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