forked from mirrors/nixpkgs
788122c3c5
The pre-sleep service exits if any command fails. Unloading facetimehd without it being loaded blocks subsequent commands from running. Note: `modprobe -r` works a bit better when unloading unused modules, and is preferrable to `rmmod`. However, the facetimehd module does not support suspending. In this case, it seems preferable to forcefully unload the module. `modprobe` does not support a `--force` flag when removing, so we are left with `rmmod`. See: - https://github.com/NixOS/nixpkgs/pull/14883 - https://github.com/patjak/bcwc_pcie/wiki#known-issues
46 lines
1.1 KiB
Nix
46 lines
1.1 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.hardware.facetimehd;
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kernelPackages = config.boot.kernelPackages;
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in
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{
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options.hardware.facetimehd.enable = mkEnableOption "facetimehd kernel module";
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config = mkIf cfg.enable {
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assertions = singleton {
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assertion = versionAtLeast kernelPackages.kernel.version "3.19";
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message = "facetimehd is not supported for kernels older than 3.19";
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};
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boot.kernelModules = [ "facetimehd" ];
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boot.blacklistedKernelModules = [ "bdc_pci" ];
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boot.extraModulePackages = [ kernelPackages.facetimehd ];
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hardware.firmware = [ pkgs.facetimehd-firmware ];
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# unload module during suspend/hibernate as it crashes the whole system
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powerManagement.powerDownCommands = ''
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${pkgs.kmod}/bin/lsmod | ${pkgs.gnugrep}/bin/grep -q "^facetimehd" && ${pkgs.kmod}/bin/rmmod -f -v facetimehd
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'';
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# and load it back on resume
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powerManagement.resumeCommands = ''
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export MODULE_DIR=/run/current-system/kernel-modules/lib/modules
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${pkgs.kmod}/bin/modprobe -v facetimehd
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'';
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};
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}
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