1.\" Copyright (c) 2009 Michael Gmelin 2.\" 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.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd September 5, 2019 28.Dt ACPI_WMI 4 29.Os 30.Sh NAME 31.Nm acpi_wmi 32.Nd "ACPI to WMI mapping driver" 33.Sh SYNOPSIS 34To compile this driver into the kernel, 35place the following line in your 36kernel configuration file: 37.Bd -ragged -offset indent 38.Cd "device acpi_wmi" 39.Ed 40.Pp 41Alternatively, to load the driver as a 42module at boot time, place the following line in 43.Xr loader.conf 5 : 44.Bd -literal -offset indent 45acpi_wmi_load="YES" 46.Ed 47.Sh DESCRIPTION 48The 49.Nm 50driver provides an interface for vendor specific WMI implementations 51(e.g. HP and Acer laptops). 52It creates /dev/wmistat%d, which can be read to get 53information about GUIDs found in the system. 54.Sh FILES 55.Bl -tag -width /dev/wmistat%d -compact 56.It Pa /dev/wmistat%d 57WMI status device. 58.El 59.Sh SYSCTLS 60The following sysctl node is currently implemented: 61.Bl -tag 62.It Va dev.acpi_wmi.%d.bmof 63Managed Object Format (MOF) blob. 64You can obtain human readable output by bmf2mof in bmfdec tool. 65(https://github.com/pali/bmfdec) 66.El 67.Sh EXAMPLES 68.Bd -literal 69# cat /dev/wmistat0 70GUID INST EXPE METH STR EVENT OID 71{5FB7F034-2C63-45E9-BE91-3D44E2C707E4} 1 NO WMAA NO NO AA 72{95F24279-4D7B-4334-9387-ACCDC67EF61C} 1 NO NO NO 0x80+ - 73{2B814318-4BE8-4707-9D84-A190A859B5D0} 1 NO NO NO 0xA0 - 74{05901221-D566-11D1-B2F0-00A0C9062910} 1 NO NO NO NO AB 75{1F4C91EB-DC5C-460B-951D-C7CB9B4B8D5E} 1 NO WMBA NO NO BA 76{2D114B49-2DFB-4130-B8FE-4A3C09E75133} 57 NO NO NO NO BC 77{988D08E3-68F4-4C35-AF3E-6A1B8106F83C} 20 NO NO NO NO BD 78{14EA9746-CE1F-4098-A0E0-7045CB4DA745} 1 NO NO NO NO BE 79{322F2028-0F84-4901-988E-015176049E2D} 2 NO NO NO NO BF 80{8232DE3D-663D-4327-A8F4-E293ADB9BF05} 0 NO NO NO NO BG 81{8F1F6436-9F42-42C8-BADC-0E9424F20C9A} 0 NO NO NO NO BH 82{8F1F6435-9F42-42C8-BADC-0E9424F20C9A} 0 NO NO NO NO BI 83# sysctl -b dev.acpi_wmi.0.bmof |bmf2mof 84[abstract] 85class Lenovo_BIOSElement { 86}; 87 88[WMI, Dynamic, Provider("WMIProv"), WmiExpense(1), Description("Bios Setting"), 89GUID("{51F5230E-9677-46cd-A1CF-C0B23EE34DB7}"), Locale("MS\\0x409")] 90class Lenovo_BiosSetting : Lenovo_BiosElement { 91 [key, read] String InstanceName; 92 [read] Boolean Active; 93 [WmiDataId(1), Description("BIOS setting")] String CurrentSetting; 94 }; 95 ... 96 97.Ed 98.Sh SEE ALSO 99.Xr acpi 4 100.Sh HISTORY 101The 102.Nm 103device driver first appeared in 104.Fx 8.0 . 105.Sh AUTHORS 106.An -nosplit 107The 108.Nm 109driver was written by 110.An Michael Gmelin Aq Mt freebsd@grem.de . 111.Pp 112Work has been inspired by the Linux acpi-wmi driver written by Carlos Corbacho. 113.Pp 114See http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx for 115the specification of ACPI-WMI. 116.Pp 117MOF part has been inspired by the Linux wmi-bmof driver 118written by Andy Lutomirski. 119.Pp 120This manual page was written by 121.An Michael Gmelin Aq Mt freebsd@grem.de . 122