Show HN: Ambient light sensor control of keyboard and screen brightness in Linux

Show HN (score: 9)
Found: November 02, 2025
ID: 2298

Description

Other
Show HN: Ambient light sensor control of keyboard and screen brightness in Linux I have always wanted cool features in Linux because I use it day to day as my OS. I have always wanted to implement this feature and do it properly: one that automatically adjusts keyboard and LCD backlights using data from the Ambient Light Sensor.

I enjoy low-level programming a lot. I delved into writing this program in C. It came out well and worked seamlessly on my device. Currently, it only works for keyboard lights. I designed it in a way that the support for LCD will come in seamlessly in the future.

But, in the real world, people have different kinds of devices. And I made sure to follow the iio implementation on the kernel through sysfs. I would like feedback. :)

More from Show

No other tools from this source yet.