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Diffstat (limited to 'static/openbsd/man4/man4.amd64/nvram.4')
| -rw-r--r-- | static/openbsd/man4/man4.amd64/nvram.4 | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/static/openbsd/man4/man4.amd64/nvram.4 b/static/openbsd/man4/man4.amd64/nvram.4 new file mode 100644 index 00000000..a7655d23 --- /dev/null +++ b/static/openbsd/man4/man4.amd64/nvram.4 @@ -0,0 +1,52 @@ +.\" $OpenBSD: nvram.4,v 1.1 2007/08/02 16:40:27 deraadt Exp $ +.\" +.\" Copyright 2004 Joshua Stein <jcs@openbsd.org> +.\" 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. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. +.\" +.Dd $Mdocdate: August 2 2007 $ +.Dt NVRAM 4 amd64 +.Os +.Sh NAME +.Nm nvram +.Nd driver for reading PC NVRAM contents +.Sh SYNOPSIS +.Cd "pseudo-device nvram 1" +.Sh DESCRIPTION +The +.Nm +device provides read-only access to the non-volatile memory contained in the +MC146818 real-time clock. +.Pp +This data is provided as a seekable character device, +.Pa /dev/nvram . +Checksums of the NVRAM contents are calculated over bytes 2 to 31 and stored +in byte 32. +A valid checksum is required for the driver to initialize. +.Sh FILES +.Bl -tag -width /dev/nvram +.It Pa /dev/nvram +.El +.Sh HISTORY +.Nm +support was originally included in +.Ox 3.7 . |