https://github.com/halosghost/enlighten

An expressive, sysfs-based backlight brightness manager
https://github.com/halosghost/enlighten

backlight brightness c

Last synced: 10 months ago
JSON representation

An expressive, sysfs-based backlight brightness manager

• Host: GitHub
• URL: https://github.com/halosghost/enlighten
• Owner: HalosGhost
• License: gpl-3.0
• Created: 2013-05-09T14:36:36.000Z (about 13 years ago)
• Default Branch: master
• Last Pushed: 2023-03-30T02:45:42.000Z (about 3 years ago)
• Last Synced: 2025-08-02T06:34:37.504Z (11 months ago)
• Topics: backlight, brightness, c
• Language: C
• Homepage:
• Size: 127 KB
• Stars: 18
• Watchers: 4
• Forks: 2
• Open Issues: 3
• Metadata Files:
  • Readme: README.rst
  • License: LICENSE

Awesome Lists containing this project

README

          
enlighten

=========

Enlighten is a *very* small C utility to control the backlight brightness in

Linux.

Features

--------

* Leverage backlight sysfs interfaces!

* Set brightness to a particular level!

* Retrieve current brightness level!

* Increase *and* Decrease brightness level relative to the current level!

* Use percentage of maximum brightness *or* absolute steps!

* Specify backlight device in an environment variable!

* Specify a list of directories to search for candidate devices in an environment variable!

* Specify minimum and maximum thresholds in environment variables!

* Specify smooth transition settings in environment variables!

* List all relevent environment configuration at runtime!

Non-Features

------------

* No auto-dimming

* No brightness level save/restore (note, systemd `supports this `_)

* Cannot order pizzas

* Cannot read mail (`yet `_)

Install

-------

Manual installation:

::

    ./configure --device=

    make

    sudo make install

Replace  with the name of your backlight device. It should be listed in

:code:`/sys/class/backlight`. Intel graphics for example calls the device :code:`intel_backlight`.

Packages

--------

If you would like to package :code:`enlighten`, please feel free to contact me and I will be happy to help, include the source files for the packaging, and list the official link here:

* `Arch Linux (AUR) `_

Run as regular user

-------------------

Given that you have installed and loaded the prepackaged backlight udev rule, or that you have manually changed the group permissions on the ``brightness`` file of your device.

Add your user to the video group to run enlighten as a regular user::

    usermod -a -G video 

Usage

-----

For usage information type :code:`enlighten help`