modules/keventd: init

[aanderse]

testing finit-project/finit#491 with this config:

{
  finit.package = pkgs.finit.overrideAttrs (o: {
    version = "5.0";
    src = pkgs.fetchFromGitHub {
      owner = "finit-project";
      repo = "finit";
      rev = "devman";
      sha256 = "sha256-HmZPAhnZD0AIuzvkfiwjMudeYrjEIlDXUclsqXvNTI4=";
    };

    buildInputs = o.buildInputs ++ [ pkgs.util-linuxMinimal.dev ];

    postPatch = (o.postPatch or "") + ''
      substituteInPlace keventd/uevent.c \
        --replace-fail '"/sbin/modprobe", "modprobe"' '"${pkgs.kmod}/bin/modprobe", "modprobe"' \
        --replace-fail '"/usr/lib/firmware/' '"/run/current-system/firmware/lib/firmware/'

      substituteInPlace keventd/builtin.c \
        --replace-fail  '"/lib/udev/hwdb.d"' '"/run/current-system/sw/lib/udev/hwdb.d"' \
        --replace-fail  '"/usr/share/hwdata/usb.ids"' '"${pkgs.hwdata}/share/hwdata/usb.ids"'
    '';
  });

  specialisation.keventd = {
    services.keventd.enable = lib.mkForce true;
    services.mdevd.enable = lib.mkForce false;
    services.udev.enable = lib.mkForce false;

    services.seatd.enable = lib.mkForce true;
    services.elogind.enable = lib.mkForce false;

    services.iwd.enable = lib.mkForce true;
  };
}

working quite well so far 😎