diff --git a/include/autoconf.h b/include/autoconf.h
index eb06853..dd7a01b 100644
--- a/include/autoconf.h
+++ b/include/autoconf.h
@@ -69,6 +69,8 @@
 
 #define CONFIG_RECV_REORDERING_CTRL
 
+#define CONFIG_DFS	0
+
  #define CONFIG_SUPPORT_USB_INT
  #ifdef CONFIG_SUPPORT_USB_INT
 /* #define CONFIG_USB_INTERRUPT_IN_PIPE */