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Command: acpidump | Section: 8 | Source: OpenBSD | File: acpidump.8
ACPIDUMP(8) FreeBSD System Manager's Manual ACPIDUMP(8)
NAME
acpidump - dump ACPI tables
SYNOPSIS
acpidump -o prefix
DESCRIPTION
The acpidump command stores ACPI tables from physical memory into files
specified by prefix. If prefix specifies a directory, the generated
files will be of the form <prefix>/<sig>.<id>. Otherwise, they will be
named <prefix>.<sig>.<id>. "sig" is the signature of the ACPI Table;
"id" is unique for each table.
Additionally a file called <prefix>/headers or <prefix>.headers will be
created that contains additional human readable information pertaining to
this specific dump.
The ACPICA disassembler is available through the OpenBSD ports tree or
package system:
# pkg_add acpica
$ iasl -d <prefix>.<sig>.<id>
acpidump requires the ability to open /dev/kmem, which may be restricted
based upon the value of the kern.allowkmem sysctl(8).
acpidump is run at startup and stores the results in /var/db/acpi.
FILES
/dev/mem
/var/db/acpi
SEE ALSO
pkg_add(1), mem(4), packages(7), ports(7)
HISTORY
The acpidump command first appeared in OpenBSD 3.8.
FreeBSD 14.1-RELEASE-p8 November 22, 2020 FreeBSD 14.1-RELEASE-p8