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 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 AUTHOR 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.
$FreeBSD: releng/11.0/share/man/man4/man4.i386/vpd.4 267938 2014-06-26 21:46:14Z bapt $
.Dd August 31, 2004 .Dt VPD 4 i386 .Os .Sh NAME .Nm vpd .Nd "Vital Product Data kernel interface" .Sh SYNOPSIS .Cd "device vpd" .Sh DESCRIPTION .Tn IBM ThinkPad notebooks (and most .Tn IBM desktop PCs) have a 48-byte Vital Product Data (VPD) structure located in the BIOS Shadow RAM.
p The VPD provides machine type and model information, the build ID (this is roughly the BIOS version) and serial number information.
p The .Nm driver scans the BIOS area and claims the memory used by the VPD structure. It provides the .Xr sysctl 3 branch .Va hw.vpd to allow this information to be accessed by the userland. The following variables are provided, one per VPD attachment (there should only be one):
p l -tag -width ".Dv MACHINE_MODEL" -compact t Dv MACHINE_TYPE
q Va machine.type Machine type. t Dv MACHINE_MODEL
q Va machine.model Machine model. t Dv BUILD_ID
q Va build.id BIOS Build ID. t Dv SERIAL_BOX
q Va serial.box Box Serial Number. t Dv SERIAL_PLANAR
q Va serial.planar Motherboard Serial Number. .El .Sh SEE ALSO .Rs .%T "TP General - Using the BIOS Build ID to identify IBM ThinkPad systems" .%N "Reference #: MIGR-45120" .%D "November 22, 2002" .%U "http://www.ibm.com/support/docview.wss?uid=psg1MIGR-45120" .Re .Sh HISTORY The .Nm driver first appeared in .Fx 5.1 . .Sh AUTHORS The .Nm driver and this manual page were written by .An Matthew N. Dodd Aq Mt mdodd@FreeBSD.org .