--- /dev/null
+// Flow control flags
+
+#define FC_DTRDSR 0x01
+#define FC_RTSCTS 0x02
+#define FC_XONXOFF 0x04
+
+// ascii definitions
+
+#define ASCII_BEL 0x07
+#define ASCII_BS 0x08
+#define ASCII_LF 0x0A
+#define ASCII_CR 0x0D
+#define ASCII_XON 0x11
+#define ASCII_XOFF 0x13
+
+
+HANDLE SerialInit(char*, int);
+
+char SerialGetc(HANDLE*);
+
+void SerialPutc(HANDLE*, char);
+
+char* SerialGets(HANDLE*);
+
+void SerialPuts(HANDLE*, char*);
+
+void sleep(int);