--- a/Makefile	
+++ b/Makefile	
@@ -1,6 +1,7 @@
 EXTRA_CFLAGS += $(USER_EXTRA_CFLAGS)
-EXTRA_CFLAGS += -O1
+EXTRA_CFLAGS += -Os
 #EXTRA_CFLAGS += -O3
+EXTRA_CFLAGS += -DCONFIG_LITTLE_ENDIAN -DCONFIG_IOCTL_CFG80211 -DRTW_USE_CFG80211_STA_EVENT
 #EXTRA_CFLAGS += -Wall
 #EXTRA_CFLAGS += -Wextra
 #EXTRA_CFLAGS += -Werror