msi-ec-kmods: init at 0.08

Adds msi-ec-kmods kernel module for msi embedded controllers.

pkgs/os-specific/linux/msi-ec/default.nix

@@ -0,0 +1,49 @@
+{
+  stdenv,
+  lib,
+  fetchFromGitHub,
+  linuxPackages,
+  kernel ? linuxPackages.kernel,
+}:
+stdenv.mkDerivation {
+  pname = "msi-ec-kmods";
+  version = "0-unstable-2024-09-19";
+
+  src = fetchFromGitHub {
+    owner = "m1dugh";
+    repo = "msi-ec";
+    rev = "60aad95e2c8948140232f4c4d70f4ceba821d5a5";
+    hash = "sha256-qgM4KeGoLvbVsii5YR3GTGi2MVlU+JeArzEoA+6A3a0=";
+  };
+
+  dontMakeSourcesWritable = false;
+
+  patchPhase = ''
+    cp ${./patches/Makefile} ./Makefile
+  '';
+
+  hardeningDisable = [
+    "pic"
+  ];
+
+  makeFlags = kernel.makeFlags ++ [
+    "KERNELDIR=${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
+    "INSTALL_MOD_PATH=$(out)"
+  ];
+
+  nativeBuildInputs = kernel.moduleBuildDependencies;
+
+  buildFlags = [ "modules" ];
+  installTargets = [ "modules_install" ];
+
+  enableParallelBuilding = true;
+
+  meta = with lib; {
+    description = "Kernel modules for MSI Embedded controller";
+    homepage = "https://github.com/m1dugh/msi-ec";
+    license = licenses.gpl2;
+    maintainers = [ maintainers.m1dugh ];
+    platforms = platforms.linux;
+    broken = kernel.kernelOlder "6.2";
+  };
+}

pkgs/os-specific/linux/msi-ec/patches/Makefile

@@ -0,0 +1,21 @@
+# Out of the box, the build with this Makefile only works in FHS environments,
+# such as on Ubuntu or Debian. On NixOS, you either need to open an FHS
+# environment using a Nix shell or build this from a specially crafted Nix
+# derivation.
+#
+# This file follows the conventions written down here:
+# https://docs.kernel.org/kbuild/modules.html
+# Make it possible to override the kernel src tree location from Nix derivation.
+KERNEL ?= $(shell uname -r)
+KERNELDIR ?= /lib/modules/$(KERNEL)/build/
+.PHONY: default
+default: modules
+# -m: Build as module.
+obj-m = msi-ec.o
+.PHONY: modules
+modules:
+	@#"M=": Module source. Special variable of the kernel's main Makefile.
+	$(MAKE) -C $(KERNELDIR) M=$(PWD) modules
+.PHONY: modules_install
+modules_install:
+	$(MAKE) -C $(KERNELDIR) M=$(PWD) modules_install

pkgs/top-level/linux-kernels.nix

@@ -615,6 +615,8 @@ in {
 
     nullfs = callPackage ../os-specific/linux/nullfs { };
 
+    msi-ec = callPackage ../os-specific/linux/msi-ec { };
+
   } // lib.optionalAttrs config.allowAliases {
     ati_drivers_x11 = throw "ati drivers are no longer supported by any kernel >=4.1"; # added 2021-05-18;
     hid-nintendo = throw "hid-nintendo was added in mainline kernel version 5.16"; # Added 2023-07-30