From a289fcd0724823053b1ea092e9df44d1f5609ff4 Mon Sep 17 00:00:00 2001
From: DerGrumpf <p.keier@beyerstedt-it.de>
Date: Sat, 6 Sep 2025 01:18:23 +0200
Subject: [PATCH] Added Brightnessctl kernel params

---
 hosts/hp15-n028sg/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hosts/hp15-n028sg/default.nix b/hosts/hp15-n028sg/default.nix
index 4f69ca1..5ef6ad1 100644
--- a/hosts/hp15-n028sg/default.nix
+++ b/hosts/hp15-n028sg/default.nix
@@ -23,7 +23,12 @@
     ./hardware-configuration.nix
   ];
 
+  # Brightness Control
+  # Enabled and Kernel patched to control screen Brightness on Notebook
   environment.systemPackages = with pkgs; [ brightnessctl ];
+  services.udev.extraRules = ''
+    		ACTION=="add", SUBSYSTEM=="backlight", KERNEL=="*", RUN+="${pkgs.coreutils}/bin/chmod a+w /sys/class/backlight/%k/brightness"
+    	'';
 
   boot.loader = {
     systemd-boot.enable = true;