WMCDC Wireless Handset Control Model

The USB generic parent driver does not always enumerate Wireless Handset Control Model (WHCM) interface collections. The registry settings that are associated with the instance of the USB generic parent driver that manages the WHCM interface collection determine whether the USB generic parent driver creates a physical device object (PDO) for the interface collection or not. For an explanation of the registry settings that specify how the USB generic parent driver enumerates WHCM interfaces, see Enumerating Interface Collections on Wireless Mobile Communication Devices.

Enumerated WHCM interface collections have the following properties.

PropertyDescription

Reference

Universal Serial Bus CDC Subclass Specification for Wireless Mobile Communication Devices, version 1.0, Section 6.1.

Class of the master interface

Communication Interface Class (0x02).

Subclass of the master interface

WHCM (0x08).

Protocol

None (0x00).

Enumerated

Yes.

Related interfaces

None.

Hardware IDs

USB\Vid_%04x&Pid_%04x&Rev_%04x&Cdc_08&MI_%02x
USB\Vid_%04x&Pid_%04x&Rev_%04x&Cdc_08
USB\Vid_%04x&Pid_%04x&Cdc_08&MI_%02x
USB\Vid_%04x&Pid_%04x&Cdc_08

Compatible IDs

USB\Class_02&SubClass_08&Prot_00
USB\Class_02&SubClass_08
USB\Class_02

Special handling

The union functional descriptor (UFD) identifies interfaces that are associated with a logical handset.

 

 

 

Send comments about this topic to Microsoft

Show: