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CDC Direct Line Control Model

USB CDC Direct Line Control Model (DLCM) interface collections have the following properties.

PropertyDescription

Reference

Universal Serial Bus Class Definitions for Communication Devices, version 1.1, Section 3.6.1.

Class of the master interface

Communication Interface Class (0x02).

Subclass of the master interface

DLCM (0x01).

Protocol

None (0x00).

Enumerated

Yes.

Related interfaces

Audio Class or vendor-defined interfaces that the union functional descriptor (UFD) references.

Hardware IDs

USB\Vid_%04x&Pid_%04x&Rev_%04x&Cdc_01&MI_%02x
USB\Vid_%04x&Pid_%04x&Rev_%04x&Cdc_01
USB\Vid_%04x&Pid_%04x&Cdc_01&MI_%02x
USB\Vid_%04x&Pid_%04x&Cdc_01

Compatible IDs

USB\Class_02&SubClass_01&Prot_00
USB\Class_02&SubClass_01
USB\Class_02

Special handling

The UFD references an audio class interface collection that is enumerated independently of the DLCM interface collection.

 

 

 

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