ref: 95206ac7e54cbc7a0c913c0ab73b509896ff27a5
parent: 0986cc7a9275c06ea337d04edf2092d0f3657a0d
author: Sigrid Solveig Haflínudóttir <sigrid@ftrv.se>
date: Sat Aug 20 09:39:49 EDT 2022
aux/imx8pm: add relative brightness setting (-+N), useful for key bindings