526294e1eb
The ACPI specification says that bit 3 inside the battery state signals that the battery is in charge limiting state. In this state, the platform limits the battery from reaching its full capacity, the exact limit is platform-specific. This might explain why a number of batteries reported a "Unknown" battery state in the past when using platform-specific interfaces to stop battery charging at a user defined level. Unfortunately not all platforms set this bit in such cases, so "non-charging" is still the default state when the battery is neither charging, discharging or full. Tested on a Lenovo Ideapad S145-14IWL. Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://patch.msgid.link/20240620191410.3646-1-W_Armin@gmx.de Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.