kernel.org and in the /doc branch of the kernel's source tree.
you can easily add the button - just duplicate one of the existing ones, change the governor's name being passed to the script.
yes, those contents are dynamic - and the CPU Report is also dynamic - -
the report contains whatever the /sys tree had to say about the subject.
(That was not the first script I have written.)
That KUAL extension was written back when PW2 devices where having terrible battery run-times. Since I don't own a PW2, to make it interesting (for me) I wrote it to produce the *.html format report the stock reader can display.
Look at the contents of the report file in an editor, despite the *.txt extension (a Kindle reader requirement), the contents are html.
(and "Pretty Printed" to boot)
https://www.mobileread.com/forums/sho...d.php?t=271929
If you follow the repository link on the above page, you will find that TEKui for the Kindle is in the same repo - - -
http://tekui.neoscientists.org/