Out-of-tree NXP WiFi kernel module Nix build derivation

README.md

Out of tree NXP WiFi Kernel module

Build with

nix-build -E 'with import <nixpkgs> {}; callPackage ./build_nxp_wifi_kmod.nix {}'

build_nxp_wifi_kmod.nix

{
  lib,
  stdenv,
  fetchFromGitHub,
  linuxPackages,
  pkgs,
}: let
  kernel = pkgs.linuxPackages.kernel;
  makeFlagsStr = lib.concatStringsSep " " (kernel.makeFlags
    ++ [
      "KERNELDIR=${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
      "INSTALL_MOD_PATH=$(out)"
    ]);
in
  stdenv.mkDerivation {
    pname = "nxp-wifi-driver";
    version = "lf-6.6.3_1.0.0";

    src = fetchFromGitHub {
      owner = "nxp-imx";
      repo = "mwifiex";
      rev = "lf-6.6.3_1.0.0";
      sha256 = "sha256-4RnvJN2vo0DF2kOuWfamn64tQaopcaEiSSIQMFZn6fg=";
    };

    nativeBuildInputs =
      kernel.moduleBuildDependencies
      ++ [
        pkgs.bc
        pkgs.kmod
      ];

    buildPhase = ''
      cd mxm_wifiex/wlan_src
      make ${makeFlagsStr} build
    '';

    installPhase = ''
      echo "Checking for built kernel modules:"
      find . -name "*.ko" -exec ls -l {} \;

      mkdir -p $out/lib/modules/${kernel.modDirVersion}/extra
      find . -name "*.ko" -exec cp {} $out/lib/modules/${kernel.modDirVersion}/extra/ \;

      echo "Contents of $out/lib/modules/${kernel.modDirVersion}/extra:"
      ls -l $out/lib/modules/${kernel.modDirVersion}/extra
    '';
  }