From d9b8919e34e0460dd1a098b6cc033f34c6ab67e8 Mon Sep 17 00:00:00 2001
From: Rodney Lorrimar <dev@rodney.id.au>
Date: Wed, 20 Oct 2021 19:26:28 +0800
Subject: [PATCH] nixos/ddccontrol: Ensure that i2c_dev module is loaded

---
 nixos/modules/services/hardware/ddccontrol.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nixos/modules/services/hardware/ddccontrol.nix b/nixos/modules/services/hardware/ddccontrol.nix
index 766bf12ee9f0..f0b5a9c81960 100644
--- a/nixos/modules/services/hardware/ddccontrol.nix
+++ b/nixos/modules/services/hardware/ddccontrol.nix
@@ -20,6 +20,9 @@ in
   ###### implementation
 
   config = lib.mkIf cfg.enable {
+    # Load the i2c-dev module
+    boot.kernelModules = [ "i2c_dev" ];
+
     # Give users access to the "gddccontrol" tool
     environment.systemPackages = [
       pkgs.ddccontrol