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.Dd September 5, 2019 26.Dt ACPI_WMI 4 27.Os 28.Sh NAME 29.Nm acpi_wmi 30.Nd "ACPI to WMI mapping driver" 31.Sh SYNOPSIS 32To compile this driver into the kernel, 33place the following line in your 34kernel configuration file: 35.Bd -ragged -offset indent 36.Cd "device acpi_wmi" 37.Ed 38.Pp 39Alternatively, to load the driver as a 40module at boot time, place the following line in 41.Xr loader.conf 5 : 42.Bd -literal -offset indent 43acpi_wmi_load="YES" 44.Ed 45.Sh DESCRIPTION 46The 47.Nm 48driver provides an interface for vendor specific WMI implementations 49(e.g. HP and Acer laptops). 50It creates /dev/wmistat%d, which can be read to get 51information about GUIDs found in the system. 52.Sh FILES 53.Bl -tag -width /dev/wmistat%d -compact 54.It Pa /dev/wmistat%d 55WMI status device. 56.El 57.Sh SYSCTLS 58The following sysctl node is currently implemented: 59.Bl -tag 60.It Va dev.acpi_wmi.%d.bmof 61Managed Object Format (MOF) blob. 62You can obtain human readable output by bmf2mof in bmfdec tool. 63(https://github.com/pali/bmfdec) 64.El 65.Sh EXAMPLES 66.Bd -literal 67# cat /dev/wmistat0 68GUID INST EXPE METH STR EVENT OID 69{5FB7F034-2C63-45E9-BE91-3D44E2C707E4} 1 NO WMAA NO NO AA 70{95F24279-4D7B-4334-9387-ACCDC67EF61C} 1 NO NO NO 0x80+ - 71{2B814318-4BE8-4707-9D84-A190A859B5D0} 1 NO NO NO 0xA0 - 72{05901221-D566-11D1-B2F0-00A0C9062910} 1 NO NO NO NO AB 73{1F4C91EB-DC5C-460B-951D-C7CB9B4B8D5E} 1 NO WMBA NO NO BA 74{2D114B49-2DFB-4130-B8FE-4A3C09E75133} 57 NO NO NO NO BC 75{988D08E3-68F4-4C35-AF3E-6A1B8106F83C} 20 NO NO NO NO BD 76{14EA9746-CE1F-4098-A0E0-7045CB4DA745} 1 NO NO NO NO BE 77{322F2028-0F84-4901-988E-015176049E2D} 2 NO NO NO NO BF 78{8232DE3D-663D-4327-A8F4-E293ADB9BF05} 0 NO NO NO NO BG 79{8F1F6436-9F42-42C8-BADC-0E9424F20C9A} 0 NO NO NO NO BH 80{8F1F6435-9F42-42C8-BADC-0E9424F20C9A} 0 NO NO NO NO BI 81# sysctl -b dev.acpi_wmi.0.bmof |bmf2mof 82[abstract] 83class Lenovo_BIOSElement { 84}; 85 86[WMI, Dynamic, Provider("WMIProv"), WmiExpense(1), Description("Bios Setting"), 87GUID("{51F5230E-9677-46cd-A1CF-C0B23EE34DB7}"), Locale("MS\\0x409")] 88class Lenovo_BiosSetting : Lenovo_BiosElement { 89 [key, read] String InstanceName; 90 [read] Boolean Active; 91 [WmiDataId(1), Description("BIOS setting")] String CurrentSetting; 92 }; 93 ... 94 95.Ed 96.Sh SEE ALSO 97.Xr acpi 4 98.Sh HISTORY 99The 100.Nm 101device driver first appeared in 102.Fx 8.0 . 103.Sh AUTHORS 104.An -nosplit 105The 106.Nm 107driver was written by 108.An Michael Gmelin Aq Mt freebsd@grem.de . 109.Pp 110Work has been inspired by the Linux acpi-wmi driver written by Carlos Corbacho. 111.Pp 112See http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx for 113the specification of ACPI-WMI. 114.Pp 115MOF part has been inspired by the Linux wmi-bmof driver 116written by Andy Lutomirski. 117.Pp 118This manual page was written by 119.An Michael Gmelin Aq Mt freebsd@grem.de . 120