X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=blobdiff_plain;f=tos%2Fchips%2Frf2xx%2Flayers%2FTimeSyncMessageLayer.h;h=dbb1c10d90c8f3786e93bcc2b05900bd4ea7b468;hb=a74f3a348646dbf95e18fb2def215f8d35035d69;hp=51e3842cbd61d07da4cea67c01d9d9c6dabf4136;hpb=a37310d42958c5ea7a6d513ac61e6182b0bc9ba1;p=tinyos-2.x.git

diff --git a/tos/chips/rf2xx/layers/TimeSyncMessageLayer.h b/tos/chips/rf2xx/layers/TimeSyncMessageLayer.h
index 51e3842c..dbb1c10d 100644
--- a/tos/chips/rf2xx/layers/TimeSyncMessageLayer.h
+++ b/tos/chips/rf2xx/layers/TimeSyncMessageLayer.h
@@ -24,10 +24,26 @@
 #ifndef __TIMESYNCMESSAGELAYER_H__
 #define __TIMESYNCMESSAGELAYER_H__
 
-// this value is sent in the air
+#include <AM.h>
+
+#ifndef TIMESYNC_AMTYPE
+#define TIMESYNC_AMTYPE 0x3D
+#endif
+
+// this is sent over the air
 typedef nx_int32_t timesync_relative_t;
 
-// this value is stored in memory
+// this is stored in memory
 typedef uint32_t timesync_absolute_t;
 
+typedef struct timesync_footer_t
+{
+	nx_am_id_t type;
+	union
+	{
+		timesync_relative_t relative;
+		timesync_absolute_t absolute;
+	};
+} timesync_footer_t;
+
 #endif//__TIMESYNCMESSAGELAYER_H__