1.\" 2.\" Copyright (c) 2014 The DragonFly Project. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in 12.\" the documentation and/or other materials provided with the 13.\" distribution. 14.\" 3. Neither the name of The DragonFly Project nor the names of its 15.\" contributors may be used to endorse or promote products derived 16.\" from this software without specific, prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22.\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23.\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 24.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 28.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.Dd May 16, 2015 32.Dt ACPIHELP 8 33.Os 34.Sh NAME 35.Nm acpihelp 36.Nd help utility for ASL operators, AML opcodes, and ACPI predefined names 37.Sh SYNOPSIS 38.Nm 39.Op Ar option ... 40.Op Ar name/prefix | hex_value 41.Sh DESCRIPTION 42The following options are supported: 43.Bl -tag -width indent 44.It Fl a Op Ar name/prefix 45Find/Display both ASL operator and AML opcode name(s). 46.It Fl d 47Display iASL Preprocessor directives. 48.It Fl e Op Ar hex_value 49Decode ACPICA exception code. 50.It Fl h 51Display help. 52.It Fl i 53Display known ACPI Device IDs (_HID). 54.It Fl k Op Ar name/prefix 55Find/Display ASL non-operator keyword(s). 56.It Fl m Op Ar name/prefix 57Find/Display AML opcode name(s). 58.It Fl o Op Ar hex_value 59Decode hex AML opcode. 60.It Fl p Op Ar name/prefix 61Find/Display ASL predefined method name(s). 62.It Fl s Op Ar name/prefix 63Find/Display ASL operator name(s). 64.It Fl t 65Display supported ACPI tables. 66.It Fl u 67Display ACPI-related UUIDs. 68.It Fl v 69Display version information. 70.El 71.Pp 72If neither 73.Ar name/prefix 74nor 75.Ar hex_value 76are specified 77.Nm 78defaults to displaying all information available for the specified option. 79.Pp 80If a 81.Ar name/prefix 82but no options are specified 83.Nm 84defaults to finding ASL operator names if 85.Ar name/prefix 86does not start with an underscore, and to finding ASL predefined method 87names if 88.Ar name/prefix 89does start with an underscore. 90.Sh SEE ALSO 91.Xr acpi 4 , 92.Xr acpibin 8 , 93.Xr acpicall 8 , 94.Xr acpiconf 8 , 95.Xr acpidump 8 , 96.Xr acpiexec 8 , 97.Xr acpinames 8 , 98.Xr acpixtract 8 , 99.Xr iasl 8 100.Pp 101.Lk https://acpica.org/documentation/ 102.Sh AUTHORS 103The 104.Nm 105utility is provided by 106.Tn Intel 107as part of their 108.Sy ACPICA 109distribution. 110.Pp 111This manual page was written by 112.An Sascha Wildner . 113