diff options
author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-01-29 06:31:35 +0000 |
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committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-01-29 06:31:35 +0000 |
commit | e8b0d3f01d916b171195912c62a286f9fc9f4372 (patch) | |
tree | 148b52ab2958f719f38a611c8bc16b6a62ba7b38 /share/man/man4/man4.pc532 | |
parent | 2d2cca84b09584b0acad8f68df27b30fd5bc245d (diff) |
from netbsd; modified by jon buller
Diffstat (limited to 'share/man/man4/man4.pc532')
-rw-r--r-- | share/man/man4/man4.pc532/Makefile | 4 | ||||
-rw-r--r-- | share/man/man4/man4.pc532/mem.4 | 73 |
2 files changed, 75 insertions, 2 deletions
diff --git a/share/man/man4/man4.pc532/Makefile b/share/man/man4/man4.pc532/Makefile index 86185f79674..8ac4b2a7f10 100644 --- a/share/man/man4/man4.pc532/Makefile +++ b/share/man/man4/man4.pc532/Makefile @@ -1,7 +1,7 @@ -# $NetBSD: Makefile,v 1.2 1995/06/27 18:22:51 phil Exp $ +# $NetBSD: Makefile,v 1.3 1996/01/25 07:19:54 phil Exp $ # Makefile for man4/man4.pc532 -MAN= lpt.4 plip.4 +MAN= lpt.4 mem.4 plip.4 MANSUBDIR=/pc532 plip.cat4: diff --git a/share/man/man4/man4.pc532/mem.4 b/share/man/man4/man4.pc532/mem.4 new file mode 100644 index 00000000000..a22386e6aad --- /dev/null +++ b/share/man/man4/man4.pc532/mem.4 @@ -0,0 +1,73 @@ +.\" Copyright (c) 1991 The Regents of the University of California. +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" from: @(#)mem.4 5.3 (Berkeley) 5/2/91 +.\" $Id: mem.4,v 1.1 1996/01/29 06:31:34 deraadt Exp $ +.\" +.Dd Dec 23, 1995 +.Dt MEM 4 pc532 +.Os +.Sh NAME +.Nm mem , +.Nm kmem +.Nd memory files +.Sh DESCRIPTION +The special file +.Nm /dev/mem +is an interface to the physical memory of the computer. +Byte offsets in this file are interpreted as physical memory addresses. +Reading and writing this file is equivalent to reading and writing +memory itself. +Only offsets within the bounds of +.Nm /dev/mem +are allowed. +.Pp +Kernel virtual memory is accessed through the interface +.Nm /dev/kmem +in the same manner as +.Nm /dev/mem . +Only kernel virtual addresses that are currently mapped to memory are allowed. +.Pp +On the +.Tn pc532 , +physical memory is contiguous starting at address 0x00000000, EPROM starts +at 0x10000000, and devices start at 0x28000000. +.Sh FILES +.Bl -tag -width Pa -compact +.It Pa /dev/mem +.It Pa /dev/kmem +.El +.Sh HISTORY +The +.Nm mem , +.Nm kmem +files appeared in +.At v6 . |