acpica-tools/acpihelp.1
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.TH ACPIHELP 1 "January 23, 2013"
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.SH NAME
acpihelp \- ACPI help utility
.SH SYNOPSIS
.B acpihelp
.RI <option> ...
.RI [<name-prefix>|<hex-value>]
.SH DESCRIPTION
This manual page briefly documents the
.B acpihelp
command. The option list is taken from the acpihelp interactive help.
.PP
.\" TeX users may be more comfortable with the \fB<whatever>\fP and
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.B acpihelp
provides descriptive text for AML and ASL keywords, methods, and opcodes.
.PP
Much more detailed documentation may be found at
http://www.acpica.org/documentation/.
.PP
If neither a <name-prefix> or a <hex-value> is provided,
.B acpihelp
will do the logical equivalent of a "display all."
.PP
A default search (that is, a search with no options) and a <name-prefix>
can mean two different things: (1) if <name-prefix> does not start with
an underscore, find ASL operator names, or (2) if <name-prefix> does start
with an underscore, find ASL predefined method names.
.SH OPTIONS
.PP
.SS ACPI Names and Symbols
.TP
.B \-k [<name-prefix>]
Find/Display ASL non-operator keyword(s)
.TP
.B \-m [<name-prefix>]
Find/Display AML opcode name(s)
.TP
.B \-p [<name-prefix>]
Find/Display ASL predefined method name(s)
.TP
.B \-s [<name-prefix>]
Find/Display ASL operator name(s)
.PP
.SS ACPI Values
.TP
.B \-e [<hex-value>]
Decode ACPICA exception code
.TP
.B \-i
Display known ACPI Device IDs (_HID)
.TP
.B \-i [<hex-value>]
Decode hex AML opcode
.SH AUTHOR
acpihelp was written by Robert Moore <robert.moore@intel.com>.
.PP
This manual page was written by Al Stone <ahs3@redhat.com> for the
Fedora project (but may be used by others).