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CDCEF(4)                 BSD Kernel Interfaces Manual                 CDCEF(4)

NAME
     cdcef -- USB Communication Device Class Ethernet function

SYNOPSIS
     cdcef* at usbf?

DESCRIPTION
     The cdcef driver implements the USB Communication Device Class (CDC) Eth-
     ernet Emulation Model (EEM) to provide support for USB Host-to-Host
     bridges.

     The USB bridge appears as a regular network interface on both sides,
     transporting Ethernet frames.

     For more information on configuring this device, see ifconfig(8).

SEE ALSO
     arp(4), cdce(4), intro(4), netintro(4), usbf(4), hostname.if(5),
     ifconfig(8)

     Universal Serial Bus Class Definitions for Communication Devices,
     http://www.usb.org/developers/devclass_docs/usbcdc11.pdf.

     CDC Subclass Specification for Ethernet Emulation Model Devices,
     http://www.usb.org/developers/devclass_docs/CDC_EEM10.pdf.

HISTORY
     The cdcef driver first appeared in OpenBSD 4.1.

AUTHORS
     The cdcef driver was written by Uwe Stuehler <uwe@openbsd.org> and Dale
     Rahn <drahn@openbsd.org>.

BSD                             April 30, 2017                             BSD