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nixpkgs/nixos/modules/hardware/usb-storage.nix
2024-09-22 10:48:25 +03:00

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Nix

{ config, lib, pkgs, ... }:
{
options.hardware.usbStorage.manageShutdown = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Enable this option to gracefully spin-down external storage during shutdown.
If you suspect improper head parking after poweroff, install `smartmontools` and check
for the `Power-Off_Retract_Count` field for an increment.
'';
};
config = lib.mkIf config.hardware.usbStorage.manageShutdown {
services.udev.extraRules = ''
ACTION=="add|change", SUBSYSTEM=="scsi_disk", DRIVERS=="usb-storage|uas", ATTR{manage_shutdown}="1"
'';
};
imports = [(lib.mkRenamedOptionModule [ "hardware" "usbStorage" "manageStartStop" ] [ "hardware" "usbStorage" "manageShutdown" ])];
}