//\r
// Internal Data Structures\r
//\r
-#define SERIAL_DEV_SIGNATURE EFI_SIGNATURE_32 ('s', 'e', 'r', 'd')\r
+#define SERIAL_DEV_SIGNATURE SIGNATURE_32 ('s', 'e', 'r', 'd')\r
#define SERIAL_MAX_BUFFER_SIZE 16\r
#define TIMEOUT_STALL_INTERVAL 10\r
\r