Unit USBCDCETHERNET

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Description

USB CDC Ethernet Driver unit

The Ethernet model is part of the USB Communications Device Class (CDC) standard which allows ethernet based networking devices to be supported by USB with a standardized protocol for data transfer and link status.

A CDC Ethernet device is defined by information in the interface descriptors and is not specific to any product and vendor ID. There are numerous devices that support the CDC Ethernet protocol including a number of external adapters and combination hubs.

This driver presents any device recognized as a CDC Ethernet as a standard network device that can be accessed using the API in the Network, Winsock, Winsock2 and Sockets units. It should not be necessary to directly call any of the functions in this unit from application code.

Note: The QEMU emulations of the Raspberry Pi Zero/A+/2B/3A+/3B use a USB CDC Ethernet device.

Constants

To be documented

Type definitions

To be documented

Public variables

None defined

Function declarations

To be documented


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