diff -uNrBbwp crda-3.18/udev/regulatory.rules crda-3.18-new/udev/regulatory.rules
--- crda-3.18/udev/regulatory.rules	2017-03-25 04:40:31.000000000 +0000
+++ crda-3.18-new/udev/regulatory.rules	2017-03-25 04:45:48.476292348 +0000
@@ -2,4 +2,6 @@
 # For more information see:
 # http://wireless.kernel.org/en/developers/Regulatory/CRDA
 
+SUBSYSTEM=="ieee80211", ACTION=="add", RUN+="/sbin/setregdomain"
+
 KERNEL=="regulatory*", ACTION=="change", SUBSYSTEM=="platform", RUN+="$(SBINDIR)crda"