48 lines
1.2 KiB
Nix
48 lines
1.2 KiB
Nix
{ stdenv, fetchurl, kernel }:
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let
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baseName = "bbswitch-0.4.1";
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name = "${baseName}-${kernel.version}";
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in
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stdenv.mkDerivation {
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inherit name;
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src = fetchurl {
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url = "http://github.com/downloads/Bumblebee-Project/bbswitch/${baseName}.tar.gz";
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sha256 = "d579c6efc5f6482f0cf0b2c1b1f1a127413218cdffdc8f2d5a946c11909bda23";
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};
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preBuild = ''
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kernelVersion=$(cd ${kernel}/lib/modules && ls)
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substituteInPlace Makefile \
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--replace "\$(shell uname -r)" "$kernelVersion" \
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--replace "/lib/modules" "${kernel}/lib/modules"
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'';
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installPhase = ''
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kernelVersion=$(cd ${kernel}/lib/modules && ls)
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ensureDir $out/lib/modules/$kernelVersion/misc
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cp bbswitch.ko $out/lib/modules/$kernelVersion/misc
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ensureDir $out/bin
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tee $out/bin/discrete_vga_poweroff << EOF
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#!/bin/sh
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echo -n OFF > /proc/acpi/bbswitch
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EOF
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tee $out/bin/discrete_vga_poweron << EOF
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#!/bin/sh
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echo -n ON > /proc/acpi/bbswitch
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EOF
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chmod +x $out/bin/discrete_vga_poweroff $out/bin/discrete_vga_poweron
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'';
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meta = {
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platforms = stdenv.lib.platforms.linux;
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description = "A module for powering off hybrid GPUs";
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};
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}
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