$OpenBSD: acpidump.8,v 1.19 2020/11/22 17:10:06 jmc Exp $

Copyright (c) 1999 Doug Rabson <dfr@FreeBSD.org>
Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
Copyright (c) 2000 Yasuo YOKOYAMA <yokoyama@jp.FreeBSD.org>
Copyright (c) 2000 Hiroki Sato <hrs@FreeBSD.org>
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$FreeBSD: src/usr.sbin/acpi/acpidump/acpidump.8,v 1.9 2001/09/05 19:21:25 dd Exp $

.Dd $Mdocdate: June 1 2017 $ .Dt ACPIDUMP 8 .Os .Sh NAME .Nm acpidump .Nd dump ACPI tables .Sh SYNOPSIS .Nm .Fl o Ar prefix .Sh DESCRIPTION The .Nm command stores ACPI tables from physical memory into files specified by .Ar prefix . If .Ar prefix specifies a directory, the generated files will be of the form <prefix>/<sig>.<id>. Otherwise, they will be named <prefix>.<sig>.<id>. .Dq sig is the signature of the ACPI Table; .Dq id is unique for each table.

p Additionally a file called <prefix>/headers or <prefix>.headers will be created that contains additional human readable information pertaining to this specific dump.

p The ACPICA disassembler is available through the .Ox ports tree or package system: d -literal -offset indent # pkg_add acpica $ iasl -d <prefix>.<sig>.<id> .Ed

p .Nm requires the ability to open

a /dev/kmem , which may be restricted based upon the value of the .Ar kern.allowkmem .Xr sysctl 8 .

p .Nm is run at startup and stores the results in

a /var/db/acpi . .Sh FILES l -tag -width /dev/mem t Pa /dev/mem t Pa /var/db/acpi .El .Sh SEE ALSO .Xr pkg_add 1 , .Xr mem 4 , .Xr packages 7 , .Xr ports 7 .Sh HISTORY The .Nm command first appeared in .Ox 3.8 .