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Summary: Since kernel 2.6.24 in 2008, the /proc/acpi/battery interface is deprecated. There is for years no updated kernel which wouldn't provide the /sys/class/power_supply/BAT0 in a laptop This patch removes the useless old path, and uses the sysfs to provide 3 informations : - current flow in mA (charge or discharge) - charge percent against last completed full charge - charge percent against battery by design charge Ref: https://cateee.net/lkddb/web-lkddb/ACPI_PROCFS_POWER.html https://bbs.archlinux.org/viewtopic.php?id=97761 Reviewers: davidedmundson, #plasma, ahiemstra Reviewed By: ahiemstra Subscribers: alexde, plasma-devel Tags: #plasma Differential Revision: https://phabricator.kde.org/D25018
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