nixos/powertop: add hooks to fix incorrect configurations

nixos/modules/tasks/powertop.nix

@@ -13,7 +13,38 @@ in
 {
   ###### interface
 
-  options.powerManagement.powertop.enable = mkEnableOption "powertop auto tuning on startup";
+  options.powerManagement.powertop = {
+    enable = mkEnableOption "powertop auto tuning on startup";
+
+    preStart = mkOption {
+      type = types.lines;
+      default = "";
+      description = ''
+        Shell commands executed before `powertop` is started.
+      '';
+    };
+
+    postStart = mkOption {
+      type = types.lines;
+      default = "";
+      example = ''
+        ''${lib.getExe' config.systemd.package "udevadm"} trigger -c bind -s usb -a idVendor=046d -a idProduct=c08c
+      '';
+      description = ''
+        Shell commands executed after `powertop` is started.
+
+        This can be used to workaround problematic configurations. For example,
+        you can retrigger an `udev` rule to disable power saving on unsupported
+        USB devices:
+        ```
+        services.udev.extraRules = ''''
+          # disable USB auto suspend for Logitech, Inc. G PRO Gaming Mouse
+          ACTION=="bind", SUBSYSTEM=="usb", ATTR{idVendor}=="046d", ATTR{idProduct}=="c08c", TEST=="power/control", ATTR{power/control}="on"
+        '''';
+        ```
+      '';
+    };
+  };
 
   ###### implementation
 
@@ -24,6 +55,8 @@ in
         after = [ "multi-user.target" ];
         description = "Powertop tunings";
         path = [ pkgs.kmod ];
+        preStart = cfg.preStart;
+        postStart = cfg.postStart;
         serviceConfig = {
           Type = "oneshot";
           RemainAfterExit = "yes";