From a2bcf8564d4367c4210e060dd8b3b75acb4c96ed Mon Sep 17 00:00:00 2001
From: Jonathan Ringer <jonringer117@gmail.com>
Date: Thu, 30 Dec 2021 11:55:51 -0800
Subject: [PATCH 1/2] nixos/openrgb: init module

---
 nixos/modules/module-list.nix               |  1 +
 nixos/modules/services/hardware/openrgb.nix | 52 +++++++++++++++++++++
 2 files changed, 53 insertions(+)
 create mode 100644 nixos/modules/services/hardware/openrgb.nix

diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 5568577909b9..50446e3ee598 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -455,6 +455,7 @@
   ./services/hardware/lcd.nix
   ./services/hardware/lirc.nix
   ./services/hardware/nvidia-optimus.nix
+  ./services/hardware/openrgb.nix
   ./services/hardware/pcscd.nix
   ./services/hardware/pommed.nix
   ./services/hardware/power-profiles-daemon.nix
diff --git a/nixos/modules/services/hardware/openrgb.nix b/nixos/modules/services/hardware/openrgb.nix
new file mode 100644
index 000000000000..12438f01e524
--- /dev/null
+++ b/nixos/modules/services/hardware/openrgb.nix
@@ -0,0 +1,52 @@
+{ pkgs, lib, config, ... }:
+
+with lib;
+
+let
+  cfg = config.services.hardware.openrgb;
+in {
+  options.services.hardware.openrgb = {
+    enable = mkEnableOption (lib.mdDoc "OpenRGB server");
+
+    package = mkOption {
+      type = types.package;
+      default = pkgs.openrgb;
+      defaultText = literalMD "pkgs.openrgb";
+      description = lib.mdDoc "Set version of openrgb package to use.";
+    };
+
+    motherboard = mkOption {
+      type = types.nullOr (types.enum [ "amd" "intel" ]);
+      default = null;
+      description = lib.mdDoc "CPU family of motherboard. Allows for addition motherboard i2c support.";
+    };
+
+    server.port = mkOption {
+      type = types.port;
+      default = 6742;
+      description = lib.mdDoc "Set server port of openrgb.";
+    };
+
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = [ cfg.package ];
+    services.udev.packages = [ cfg.package ];
+
+    boot.kernelModules = [ "i2c-dev" ]
+     ++ lib.optionals (cfg.motherboard == "amd") [ "i2c-piix" ]
+     ++ lib.optionals (cfg.motherboard == "intel") [ "i2c-i801" ];
+
+    systemd.services.openrgb = {
+      description = "OpenRGB server daemon";
+      wantedBy = [ "multi-user.target" ];
+
+      serviceConfig = {
+        ExecStart = "${cfg.package}/bin/openrgb --server --server-port ${toString cfg.server.port}";
+        Restart = "always";
+      };
+    };
+  };
+
+  meta.maintainers = with lib.maintainers; [ jonringer ];
+}

From 3c0d465d9a7aabae38f992bdeb712fd70b6076a9 Mon Sep 17 00:00:00 2001
From: Jonathan Ringer <jonringer117@gmail.com>
Date: Fri, 31 Dec 2021 11:41:46 -0800
Subject: [PATCH 2/2] nixos/doc/rl-22.11: Add mention of openrgb option being
 added

---
 nixos/doc/manual/from_md/release-notes/rl-2211.section.xml | 7 +++++++
 nixos/doc/manual/release-notes/rl-2211.section.md          | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml b/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml
index cdf6e9999408..566001c06bfe 100644
--- a/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml
+++ b/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml
@@ -233,6 +233,13 @@
           <link xlink:href="options.html#opt-services.languagetool.enable">services.languagetool</link>.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          <link xlink:href="https://gitlab.com/CalcProgrammer1/OpenRGB/-/tree/master">OpenRGB</link>,
+          a FOSS tool for controlling RGB lighting. Available as
+          <link xlink:href="options.html#opt-services-hardware-openrgb-enable">services.hardware.openrgb.enable</link>.
+        </para>
+      </listitem>
       <listitem>
         <para>
           <link xlink:href="https://www.getoutline.com/">Outline</link>,
diff --git a/nixos/doc/manual/release-notes/rl-2211.section.md b/nixos/doc/manual/release-notes/rl-2211.section.md
index 607e5cfeb4d4..8ab9f27edb94 100644
--- a/nixos/doc/manual/release-notes/rl-2211.section.md
+++ b/nixos/doc/manual/release-notes/rl-2211.section.md
@@ -85,6 +85,8 @@ In addition to numerous new and upgraded packages, this release has the followin
 - [languagetool](https://languagetool.org/), a multilingual grammar, style, and spell checker.
   Available as [services.languagetool](options.html#opt-services.languagetool.enable).
 
+- [OpenRGB](https://gitlab.com/CalcProgrammer1/OpenRGB/-/tree/master), a FOSS tool for controlling RGB lighting. Available as [services.hardware.openrgb.enable](options.html#opt-services-hardware-openrgb-enable).
+
 - [Outline](https://www.getoutline.com/), a wiki and knowledge base similar to Notion. Available as [services.outline](#opt-services.outline.enable).
 
 - [alps](https://git.sr.ht/~migadu/alps), a simple and extensible webmail. Available as [services.alps](#opt-services.alps.enable).