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CDC Telephone Control Model

USB CDC Telephone Control Model (TCM) interface collections have the following properties.

PropertyDescription

Reference

Universal Serial Bus Class Definitions for Communication Devices, version 1.1, Section 3.6.3.

Class of the master interface

Communication Interface Class (0x02).

SubClass of the master interface

TCM (0x03).

Protocol

Any.

Enumerated

Yes.

Related interfaces

Audio class interfaces that the union functional descriptor (UFD) references.

Hardware ID

USB\Vid_%04x&Pid_%04x&Rev_%04x&Cdc_03&MI_%02x
USB\Vid_%04x&Pid_%04x&Rev_%04x&Cdc_03
USB\Vid_%04x&Pid_%04x&Cdc_03&MI_%02x
USB\Vid_%04x&Pid_%04x&Cdc_03

Compatible ID

USB\Class_02&SubClass_03&Prot_%02X
USB\Class_02&SubClass_03
USB\Class_02

Special handling

The UFD can reference an audio class interface collection that is enumerated independently of the TCM interface collection.

 

 

 

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