/dev/wmistat%d
WMI status devices.
acpi_wmi4
Acpi to wmi mapping driver
Usage
To compile this driver into the kernel, place the following line in your kernel configuration file:
device acpi_wmi
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
acpi_wmi_load="YES"
Overview
The acpi_wmi driver provides an interface for vendor specific WMI implementations (e.g. HP and Acer laptops). It creates /dev/wmistat%d, which can be read to get information about GUIDs found in the system.
Files
Sysctls
The following sysctl node is currently implemented:
- dev.acpi_wmi.%d.bmof
-
binary Managed Object Format (MOF) buffer
Examples
Read GUIDs from the first WMI interface found in the system:
# cat /dev/wmistat0
GUID INST EXPE METH STR EVENT OID
{5FB7F034-2C63-45E9-BE91-3D44E2C707E4} 1 NO WMAA NO NO AA
{95F24279-4D7B-4334-9387-ACCDC67EF61C} 1 NO NO NO 0x80+ -
{2B814318-4BE8-4707-9D84-A190A859B5D0} 1 NO NO NO 0xA0 -
{05901221-D566-11D1-B2F0-00A0C9062910} 1 NO NO NO NO AB
{1F4C91EB-DC5C-460B-951D-C7CB9B4B8D5E} 1 NO WMBA NO NO BA
{2D114B49-2DFB-4130-B8FE-4A3C09E75133} 57 NO NO NO NO BC
{988D08E3-68F4-4C35-AF3E-6A1B8106F83C} 20 NO NO NO NO BD
{14EA9746-CE1F-4098-A0E0-7045CB4DA745} 1 NO NO NO NO BE
{322F2028-0F84-4901-988E-015176049E2D} 2 NO NO NO NO BF
{8232DE3D-663D-4327-A8F4-E293ADB9BF05} 0 NO NO NO NO BG
{8F1F6436-9F42-42C8-BADC-0E9424F20C9A} 0 NO NO NO NO BH
{8F1F6435-9F42-42C8-BADC-0E9424F20C9A} 0 NO NO NO NO BI
Read first WMI interface description with bmf2mof from ports/converters/bmfdec:
# sysctl -b dev.acpi_wmi.0.bmof | bmf2mof
[abstract]
class Lenovo_BIOSElement {
};
[WMI, Dynamic, Provider("WMIProv"), WmiExpense(1), Description("Bios Setting"),
GUID("{51F5230E-9677-46cd-A1CF-C0B23EE34DB7}"), Locale("MS\0x409")]
class Lenovo_BiosSetting : Lenovo_BiosElement {
[key, read] String InstanceName;
[read] Boolean Active;
[WmiDataId(1), Description("BIOS setting")] String CurrentSetting;
};
...
Releases
39 releases since FreeBSD 8.0-RELEASE; the text changed 27 times.