Legion-Y720-Keyboard-Backlight

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Simple C program to control the keyboard backlight on the Lenovo Legion Y720 (should probably work on other laptops with the same keyboard)

It's literally this but written in C without a GUI for the minimalists and purists

Features

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• Unlimited profiles
• Easy-ish configuration
• No GUI (terminal ftw)
• Written in C

➡ 🏗️ Build

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$ make all
...

• Binary can be found in build/release/kbd-backlight

➡ ✨ Install

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$ sudo make all install postinstall
...

• Binary path is /usr/local/bin/kbd-backlight
• Configuration path is /etc/kbd-backlight/backlight.conf

NOTE: Any user that should be able to control the backlight should be added to the kbd-backlight group (gpasswd -a [USER] kbd-backlight)

We now have an AppArmor profile for the binary, to install it do this:

$ sudo make apparmor
...

$ sudo aa-enforce /etc/apparmor.d/kbd-backlight

Usage

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$ kbd-backlight

Usage: kbd-backlight [profile name] {config file}

{config file}: Specify another location for the config file (Optional)

Each user, who is in the kbd-backlight group, can now have their own personal config file with their own custom profiles. This config file must be manually created by the user with this command:

$ cp /usr/share/kbd-backlight/backlight.conf.default ~/.config/kbd-backlight.conf

The executable will automagically detect whether the user has their own config and load that instead of the system-wide one