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Fix NixOS kernel module installation (fix #128) #129

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Fix NixOS kernel module installation (fix #128) #129

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19 changes: 14 additions & 5 deletions module.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,7 @@ with lib; let
lib,
stdenv,
kernel,
kernelModuleMakeFlags,
}:
stdenv.mkDerivation rec {
pname = "maccel-dkms";
Expand All @@ -74,19 +75,27 @@ with lib; let
nativeBuildInputs = kernel.moduleBuildDependencies;

makeFlags =
[
kernelModuleMakeFlags
++ [
"KVER=${kernel.modDirVersion}"
"KDIR=${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
"DRIVER_CFLAGS=-DFIXEDPT_BITS=64"
"INSTALL_MOD_PATH=${placeholder "out"}"
"INSTALL_MOD_DIR=kernel/drivers/usb"
"INSTALL_MOD_STRIP=1"
"DEPMOD=true"
]
++ optionals cfg.debug ["DRIVER_CFLAGS+=-g -DDEBUG"];

preBuild = "cd driver";

installPhase = ''
mkdir -p $out/lib/modules/${kernel.modDirVersion}/kernel/drivers/usb
cp maccel.ko $out/lib/modules/${kernel.modDirVersion}/kernel/drivers/usb/
'';
installTargets = ["modules_install"];

installFlags = [
"-C"
"${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
"M=$(PWD)"
];

meta = with lib; {
description = "Mouse acceleration driver and kernel module for Linux.";
Expand Down