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22 lines
475 B
Nix
22 lines
475 B
Nix
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{ pkgs, lib, ... }:
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{
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environment.systemPackages = with pkgs; [
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hdparm
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];
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services.udev.extraRules =
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let
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mkRule = as: lib.concatStringsSep ", " as;
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mkRules = rs: lib.concatStringsSep "\n" rs;
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in
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mkRules ([
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(mkRule [
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''ACTION=="add|change"''
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''SUBSYSTEM=="block"''
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''KERNEL=="sd[a-z]"''
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''ATTR{queue/rotational}=="1"''
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''RUN+="${pkgs.hdparm}/bin/hdparm -B 90 -S 41 /dev/%k"''
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])
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]);
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}
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