diff --git a/debian/libcomedi0.postinst b/debian/libcomedi0.postinst
index aac6819..9f74fcb 100644
--- a/debian/libcomedi0.postinst
+++ b/debian/libcomedi0.postinst
@@ -4,5 +4,13 @@ if [ "$1" = "configure" ]; then
 	/sbin/ldconfig
 fi
 
+# Policy says that the user should be asked before we do this.
+for i in 0 1 2 3
+do
+	mknod /dev/comedi$i c 98 $i
+	chown root.root /dev/comedi$i
+	chmod 666 /dev/comedi$i
+done
+
 #DEBHELPER#