--- /dev/null
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National
+ * Science Foundation and the Department of Energy.
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico. You can find out more at
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Peter Dinda <pdinda@northwestern.edu>
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
+ * All rights reserved.
+ *
+ * Author: Peter Dinda <pdinda@northwestern.edu>
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software. You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+#ifndef SERIAL_H
+#define SERIAL_H
+
+#include <geekos/irq.h>
+#include <geekos/string.h>
+#include <geekos/io.h>
+#include <geekos/screen.h>
+
+#define COM1_IRQ 4
+#define DEFAULT_SERIAL_ADDR 0x3F8
+
+
+#ifndef SERIAL_PRINT_DEBUG_LEVEL
+#define SERIAL_PRINT_DEBUG_LEVEL 10
+#endif
+
+void SerialPutChar(unsigned char c);
+
+void SerialPrint(const char * format, ...);
+void SerialPrintLevel(int level, const char * format, ...);
+void SerialPrintList(const char * format, va_list ap);
+
+void SerialPutLine(char * line);
+void SerialPutLineN(char * line, int len);
+
+
+void SerialPrintHex(unsigned char x);
+void SerialMemDump(unsigned char *start, int n);
+
+void Init_Serial();
+void InitSerialAddr(unsigned short io_addr);
+
+#endif