Add BDADDR_ALL constant
diff --git a/include/bluetooth.h b/include/bluetooth.h
index 3dc4b24..412ccf6 100644
--- a/include/bluetooth.h
+++ b/include/bluetooth.h
@@ -105,6 +105,7 @@
 } __attribute__((packed)) bdaddr_t;
 
 #define BDADDR_ANY   (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
+#define BDADDR_ALL   (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})
 #define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
 
 /* Copy, swap, convert BD Address */