nx_uint8_t metadata[sizeof(message_metadata_t)];
} message_t;
-This format keeps data at a fixed offset, which is important when
+This format keeps data at a fixed but platform dependent offset, which
+is important when
passing a message buffer between two different link layers. If the
data payload were at different offsets for different link layers, then
passing a packet between two link layers would require a ``memmove(3)``