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