20 lines
639 B
Nix
20 lines
639 B
Nix
{ config, lib, pkgs, ... }:
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with lib;
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{
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options.hardware.usbStorage.manageStartStop = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Enable this option to gracefully spin-down external storage during shutdown.
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If you suspect improper head parking after poweroff, install `smartmontools` and check
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for the `Power-Off_Retract_Count` field for an increment.
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'';
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};
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config = mkIf config.hardware.usbStorage.manageStartStop {
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services.udev.extraRules = ''
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ACTION=="add|change", SUBSYSTEM=="scsi_disk", DRIVERS=="usb-storage", ATTR{manage_system_start_stop}="1"
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'';
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};
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}
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