The ECM (Ethernet Networking Control Model) protocol is used for exchanging Ethernet-framed data between the device and host. A CDC ECM compliant device exposes itself as a virtual NIC to the host operating system. The NIC is assigned with a MAC and an IP address.

A general use case of a CDC ECM device is a point-to-point Ethernet adapter to a LAN/WLAN.

The CDC ECM Driver is a component of the DriverCore product line. DriverCore offers standard PC Communication Drivers, allowing device manufacturers to expose a variety of native communication interfaces via USB to different operating systems and platforms.

DriverCore ECM exposes a control interface with the device to facilitate the required Network and USB device control requests (e.g. - enumeration, power management filters, encapsulated commands).

• Multiple USB CDC ECM devices on separate physical USB devices
• Device management control requests
• Composite USB devices with multiple CDC ECM functions
• Getting/setting NDIS Object Identifiers (OID's)
• NDIS 5.0/5.1 and NDIS 6.0

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