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diff --git a/scsi/scsi_endian.h b/scsi/scsi_endian.h
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+/* 
+ * Mach Operating System
+ * Copyright (c) 1991,1990 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+/*
+ *	File: scsi_endian.h
+ * 	Author: Alessandro Forin, Carnegie Mellon University
+ *	Date:	6/91
+ *
+ *	Byte/Bit order issues are solved here.
+ */
+
+
+#ifndef	_SCSI_ENDIAN_H_
+#define	_SCSI_ENDIAN_H_	1
+
+/*
+ * Macros to take care of bitfield placement within a byte.
+ * It might be possible to extend these to something that
+ * takes care of multibyte structures, using perhaps the
+ * type ("t") parameter.  Someday.
+ */
+#if	BYTE_MSF
+
+#define	BITFIELD_2(t,a,b)		t b,a
+#define	BITFIELD_3(t,a,b,c)		t c,b,a
+#define	BITFIELD_4(t,a,b,c,d)		t d,c,b,a
+#define	BITFIELD_5(t,a,b,c,d,e)		t e,d,c,b,a
+#define	BITFIELD_6(t,a,b,c,d,e,f)	t f,e,d,c,b,a
+#define	BITFIELD_7(t,a,b,c,d,e,f,g)	t g,f,e,d,c,b,a
+#define	BITFIELD_8(t,a,b,c,d,e,f,g,h)	t h,g,f,e,d,c,b,a
+
+#else	/*BYTE_MSF*/
+
+#define	BITFIELD_2(t,a,b)		t a,b
+#define	BITFIELD_3(t,a,b,c)		t a,b,c
+#define	BITFIELD_4(t,a,b,c,d)		t a,b,c,d
+#define	BITFIELD_5(t,a,b,c,d,e)		t a,b,c,d,e
+#define	BITFIELD_6(t,a,b,c,d,e,f)	t a,b,c,d,e
+#define	BITFIELD_7(t,a,b,c,d,e,f,g)	t a,b,c,d,e,f,g
+#define	BITFIELD_8(t,a,b,c,d,e,f,g,h)	t a,b,c,d,e,f,g,h
+
+#endif	/*BYTE_MSF*/
+
+#endif	/*_SCSI_ENDIAN_H_*/