depot/third_party/nixpkgs/pkgs/os-specific/linux/rtl8821ce/default.nix

{ lib, stdenv, fetchFromGitHub, kernel, bc }:

stdenv.mkDerivation rec {
  pname = "rtl8821ce-${kernel.version}";
  version = "unstable-2021-03-21";

  src = fetchFromGitHub {
    owner = "tomaspinho";
    repo = "rtl8821ce";
    rev = "897e7c4c15dd5a0a569745dc223d969a26ff5bfc";
    sha256 = "0935dzz0njxh78wfd17yqah1dxn6b3kaszvzclwwrwwhwcrdp80j";
  };

  hardeningDisable = [ "pic" ];

  nativeBuildInputs = [ bc ];
  buildInputs = kernel.moduleBuildDependencies;

  prePatch = ''
    substituteInPlace ./Makefile \
      --replace /lib/modules/ "${kernel.dev}/lib/modules/" \
      --replace '$(shell uname -r)' "${kernel.modDirVersion}" \
      --replace /sbin/depmod \# \
      --replace '$(MODDESTDIR)' "$out/lib/modules/${kernel.modDirVersion}/kernel/net/wireless/"
  '';

  preInstall = ''
    mkdir -p "$out/lib/modules/${kernel.modDirVersion}/kernel/net/wireless/"
  '';

  meta = with lib; {
    description = "Realtek rtl8821ce driver";
    homepage = "https://github.com/tomaspinho/rtl8821ce";
    license = licenses.gpl2Only;
    platforms = platforms.linux;
    maintainers = with maintainers; [ hhm ];
  };
}