diff --git a/fpga/xilinx/programmer/svfplayer/xsvf-rpi.c b/fpga/xilinx/programmer/svfplayer/xsvf-rpi.c
index 45d8c78..034abbc 100644
--- a/fpga/xilinx/programmer/svfplayer/xsvf-rpi.c
+++ b/fpga/xilinx/programmer/svfplayer/xsvf-rpi.c
@@ -1,14 +1,14 @@
 /*
  *  Lib(X)SVF  -  A library for implementing SVF and XSVF JTAG players
  *
- *  Copyright (C) 2012  Timothy Pearson <kb9vqf@pearsoncomputing.net>
+ *  Copyright (C) 2012  Timothy Pearson <kb9vqf@pearsoncomputing.net> (Raspberry Pi)
  *  Copyright (C) 2009  RIEGL Research ForschungsGmbH
  *  Copyright (C) 2009  Clifford Wolf <clifford@clifford.at>
- *  
+ *
  *  Permission to use, copy, modify, and/or distribute this software for any
  *  purpose with or without fee is hereby granted, provided that the above
  *  copyright notice and this permission notice appear in all copies.
- *  
+ *
  *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
@@ -72,22 +72,22 @@ static void io_setup(void)
 		printf("can't open /dev/mem \n");
 		exit (-1);
 	}
-	
+
 	/* mmap GPIO */
-	
+
 	// Allocate MAP block
 	if ((gpio_mem = malloc(BLOCK_SIZE + (PAGE_SIZE-1))) == NULL) {
 		printf("allocation error \n");
 		exit (-1);
 	}
-	
+
 	// Make sure pointer is on 4K boundary
 	if ((unsigned long)gpio_mem % PAGE_SIZE) {
 		gpio_mem += PAGE_SIZE - ((unsigned long)gpio_mem % PAGE_SIZE);
 	}
-	
+
 	// Now map it
-	gpio_map = (unsigned char *)mmap(
+	gpio_map = (char *)mmap(
 		(caddr_t)gpio_mem,
 		BLOCK_SIZE,
 		PROT_READ|PROT_WRITE,
@@ -95,12 +95,12 @@ static void io_setup(void)
 		mem_fd,
 		GPIO_BASE
 	);
-	
+
 	if ((long)gpio_map < 0) {
 		printf("mmap error %d\n", (int)gpio_map);
 		exit (-1);
 	}
-	
+
 	// Always use volatile pointer!
 	gpio = (volatile unsigned *)gpio_map;
 
@@ -372,6 +372,7 @@ static void copyleft()
 	fprintf(stderr, "xsvftool-gpio, part of Lib(X)SVF (http://www.clifford.at/libxsvf/).\n");
 	fprintf(stderr, "Copyright (C) 2009  RIEGL Research ForschungsGmbH\n");
 	fprintf(stderr, "Copyright (C) 2009  Clifford Wolf <clifford@clifford.at>\n");
+	fprintf(stderr, "Copyright (C) 2012  Timothy Pearson <kb9vqf@pearsoncomputing.net> (Raspberry Pi)\n");
 	fprintf(stderr, "Lib(X)SVF is free software licensed under the ISC license.\n");
 	already_printed = 1;
 }