From 9c3a31ff4c5024fcb449c71f423768b6acf2f431 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Wed, 27 Mar 2013 22:08:25 +0100
Subject: [PATCH] Clear /proc/sys/kernel/hotplug again

Otherwise the kernel will pointlessly try to invoke /sbin/hotplug all
the time.  Another feature lost in the systemd switch.
---
 modules/services/hardware/udev.nix | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/modules/services/hardware/udev.nix b/modules/services/hardware/udev.nix
index a83f99278f4d..3bec396bfe57 100644
--- a/modules/services/hardware/udev.nix
+++ b/modules/services/hardware/udev.nix
@@ -228,7 +228,15 @@ in
       (isYes "NET")
     ];
 
-    system.activationScripts."set-firmware-path" =
-      "echo -n ${config.hardware.firmware} 2>/dev/null > /sys/module/firmware_class/parameters/path";
+    system.activationScripts.setFirmwarePath =
+      ''
+        echo -n ${config.hardware.firmware} 2>/dev/null > /sys/module/firmware_class/parameters/path
+      '';
+
+    system.activationScripts.clearHotplug =
+      ''
+        echo "" > /proc/sys/kernel/hotplug
+      '';
+
   };
 }