nixpkgs/pkgs/os-specific/linux/bbswitch/default.nix
Shea Levy 4fa4ab3a6e Partially revert my recent kernelPackages changes
First, pass in `self' again so that overriding works properly (thanks
for pointing that out, @edolstra)

Second, instead of having linuxPackages*.kernel mean something different
inside the set and out, add a new attribute linuxPackages*.kernelDev,
which for the generic kernel is simply linuxPackages*.kernel but for the
manual-config kernel is the `dev' output (which has the build tree,
source tree, etc.)

The second change required trivial modifications in a bunch of
expressions, I verified that all of the linuxPackages* sets defined in
all-packages.nix have the same drv paths before and after the change.

Signed-off-by: Shea Levy <shea@shealevy.com>
2013-03-24 07:45:00 -04:00

47 lines
1.1 KiB
Nix

{ stdenv, fetchurl, kernelDev }:
let
baseName = "bbswitch";
version = "0.6";
name = "${baseName}-${version}-${kernelDev.version}";
in
stdenv.mkDerivation {
inherit name;
src = fetchurl {
url = "https://github.com/Bumblebee-Project/${baseName}/archive/v${version}.tar.gz";
sha256 = "1y1wggfrlpxybz5cvrbvvpqa2hh6ncazzdlg9c94sx40n6p5dcf4";
};
preBuild = ''
substituteInPlace Makefile \
--replace "\$(shell uname -r)" "${kernelDev.modDirVersion}" \
--replace "/lib/modules" "${kernelDev}/lib/modules"
'';
installPhase = ''
ensureDir $out/lib/modules/${kernelDev.modDirVersion}/misc
cp bbswitch.ko $out/lib/modules/${kernelDev.modDirVersion}/misc
ensureDir $out/bin
tee $out/bin/discrete_vga_poweroff << EOF
#!/bin/sh
echo -n OFF > /proc/acpi/bbswitch
EOF
tee $out/bin/discrete_vga_poweron << EOF
#!/bin/sh
echo -n ON > /proc/acpi/bbswitch
EOF
chmod +x $out/bin/discrete_vga_poweroff $out/bin/discrete_vga_poweron
'';
meta = {
platforms = stdenv.lib.platforms.linux;
description = "A module for powering off hybrid GPUs";
};
}