KB back light setting change: dir location and how to edit locked files?

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Hello,

Can anyone help me change the KB backlit settings.
The KB light goes out after like 3 seconds.
I want to disable the feature, or set timeout to max setting.

I thought it would be in the /sys directory some where but I am a noob and also when I thought I found the right location I could not edit the files.
I am familiar with chown,chgrp,chmod, but on reboto, even those ownership and group setting was reverted back to root.

So, I am asking for :

How do I figure out keyboard settings, with what tool/ command? ( So I might not ask again)
What directory are the KB back light settings?
How do I figure out on my own next time where this directory would be for specific hardware settings?
How do I edit files in directories such as /sys that appear to have locked files?

Thank You,

Lowry

jx

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