diff --git a/atusb/fw/ep0.c b/atusb/fw/ep0.c
index d845156..2b92f6d 100644
--- a/atusb/fw/ep0.c
+++ b/atusb/fw/ep0.c
@@ -37,8 +37,13 @@
 #include "spi.h"
 #include "mac.h"
 
-
+#ifdef ATUSB
 #define	HW_TYPE		HW_TYPE_110131
+#endif
+
+#ifdef RZUSB
+#define	HW_TYPE		HW_TYPE_RZUSB
+#endif
 
 #define debug(...)
 #define error(...)
diff --git a/atusb/fw/include/atusb/ep0.h b/atusb/fw/include/atusb/ep0.h
index adb7d19..4f99b20 100644
--- a/atusb/fw/include/atusb/ep0.h
+++ b/atusb/fw/include/atusb/ep0.h
@@ -32,6 +32,7 @@
 #define	HW_TYPE_100813	0	/* 2010-08-13 */
 #define	HW_TYPE_101216	1	/* 2010-12-16 */
 #define	HW_TYPE_110131	2	/* 2011-01-31, ATmega32U2-based */
+#define	HW_TYPE_RZUSB	3	/* Atmel Raven USB dongle with at86rf230 */
 
 
 /*