diff -Naur 2.5-r0-orig/defconfig 2.5-r0/defconfig
--- 2.5-r0-orig/defconfig	2019-07-15 11:06:28.150942350 +0000
+++ 2.5-r0/defconfig	2019-07-15 10:58:17.959429890 +0000
@@ -139,6 +139,9 @@
 # IEEE 802.11n (High Throughput) support
 CONFIG_IEEE80211N=y
 
+CONFIG_IEEE80211AC=y
+CONFIG_ACS=y
+
 # Remove debugging code that is printing out debug messages to stdout.
 # This can be used to reduce the size of the hostapd considerably if debugging
 # code is not needed.
File 2.5-r0-orig/pseudo/pseudo.socket is a socket while file 2.5-r0/pseudo/pseudo.socket is a socket