Index: etc/rc.d/wpa_supplicant
===================================================================
--- etc/rc.d/wpa_supplicant
+++ etc/rc.d/wpa_supplicant
@@ -38,7 +38,11 @@
 load_rc_config $name
 
 command=${wpa_supplicant_program}
-conf_file=${wpa_supplicant_conf_file}
+if [ -e ${wpa_supplicant_conf_file}.${ifn} ]; then
+	conf_file=${wpa_supplicant_conf_file}.${ifn}
+else
+	conf_file=${wpa_supplicant_conf_file}
+fi
 pidfile="/var/run/${name}/${ifn}.pid"
 command_args="-B -i $ifn -c $conf_file -D $driver -P $pidfile"
 required_files=$conf_file