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 July 25, 2014 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 e Op Ar hex_value 47Decode ACPICA exception code. 48.It Fl h 49Display help. 50.It Fl i 51Display known ACPI Device IDs (_HID). 52.It Fl k Op Ar name/prefix 53Find/Display ASL non-operator keyword(s). 54.It Fl m Op Ar name/prefix 55Find/Display AML opcode name(s). 56.It Fl o Op Ar hex_value 57Decode hex AML opcode. 58.It Fl p Op Ar name/prefix 59Find/Display ASL predefined method name(s). 60.It Fl s Op Ar name/prefix 61Find/Display ASL operator name(s). 62.It Fl u 63Display ACPI-related UUIDs. 64.It Fl v 65Display version information. 66.El 67.Pp 68If neither 69.Ar name/prefix 70nor 71.Ar hex_value 72are specified 73.Nm 74defaults to displaying all information available for the specified option. 75.Pp 76If a 77.Ar name/prefix 78but no options are specified 79.Nm 80defaults to finding ASL operator names if 81.Ar name/prefix 82does not start with an underscore, and to finding ASL predefined method 83names if 84.Ar name/prefix 85does start with an underscore. 86.Sh SEE ALSO 87.Xr acpi 4 , 88.Xr acpibin 8 , 89.Xr acpiconf 8 , 90.Xr acpidump 8 , 91.Xr acpiexec 8 , 92.Xr acpinames 8 , 93.Xr acpixtract 8 , 94.Xr iasl 8 95.Pp 96.Lk https://acpica.org/documentation/ 97.Sh AUTHORS 98The 99.Nm 100utility is provided by 101.Tn Intel 102as part of their 103.Sy ACPICA 104distribution. 105.Pp 106This manual page was written by 107.An Sascha Wildner . 108