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The KEBA fan controller is found in the system FPGA of KEBA PLC devices. It detects if the fan is removed or blocked. For fans with tacho signal the monitoring of the speed of the fan is supported. It also supports to regulate the speed of fans with PWM input. The auxiliary device for this driver is instantiated by the cp500 misc driver. Signed-off-by: Gerhard Engleder <eg@keba.com> Link: https://lore.kernel.org/r/20250425194823.54664-1-gerhard@engleder-embedded.com [groeck: Added various missing "break;" statements] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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.