Originally Posted by joblack
Can you please explain where the FrontLight(Intensity) came from? Is it an included Kindle function?
It is from a line of text in the file: /sys/devices/system/fl_tps6116x/fl_tps6116x0/fl_intensity
That is a virtual file whose content is dynamically generated by a device driver each time you read from it. In this case, it shows the current intensity level of the FrontLight LEDs.
See this post for more info:
In those examples, the cat
command is used to read the current intensity (brightness) value, and the echo
command is used to write a new value.