Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
with devices defined herein. It further reserves all strings representing 4 HEX digits for
exclusive use with PCI-assigned Vendor IDs.
Example ASL:
Name (_HID, EISAID ("PNP0C0C"))
Name (_HID, EISAID ("INT0800"))
Name (_HID, "ACPI0003")
Name (_HID, "MSFT0003")
Name (_HID, "80860003")
// Control-Method Power Button
// Firmware Hub
// AC adapter device
// Vendor-defined device
// PCI-assigned device identifier
6.1.6 _HRV (Hardware Revision)
This object is used to supply OSPM with the device’s hardware revision. The use of _HRV is
optional.
Arguments:
None
Return Value:
An Integer (DWORD) containing the hardware revision number
Example ASL:
Name (_HRV, 0x0003)// Revision number 3 of this hardware device
6.1.7 _MLS (Multiple Language String)
The _MLS object provides OSPM a human readable description of a device in multiple languages.
This information may be provided to the end user when the OSPM is unable to get any other
information about this device. Although this functionality is also provided by the _STR object,
_MLS expands that functionality and provides vendors with the capability to provide multiple
strings in multiple languages. The _MLS object evaluates to a package of packages. Each subpackage
consists of a Language identifier and corresponding unicode string for a given locale.
Specifying a language identifier allows OSPM to easily determine if support for displaying the
Unicode string is available. OSPM can use this information to determine whether or not to display
the device string, or which string is appropriate for a user’s preferred locale.
It is assumed that OSPM will always support the primary English locale to accommodate English
embedded in a non-English string, such as a brand name.
If OSPM doesn’t support the specific sub-language ID it may choose to use the primary language ID
for displaying device text.
Arguments:
None
Return Value:
A variable-length Package containing a list of language descriptor Packages as described below.
282 April, 2015 Version 6.0