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DE(4)			     Kernel Interfaces Manual			   DE(4)

NAME
     de -- DEC DC21x4x Ethernet device driver

SYNOPSIS
     To compile this driver into the kernel, place the following line in your
     kernel configuration file:

	   device de

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):

	   if_de_load="YES"

DESCRIPTION
     The de driver provides support for the Ethernet adapters based on the Digi-
     tal  Equipment  DC21x4x  based  self-contained  Ethernet  and Fast Ethernet
     chips.

     The de driver supports the following media types:

     autoselect       Enable autoselection of the media type and options

     10baseT/UTP      Set 10Mbps operation on the 10baseT port

     10base2/BNC      Set 10Mbps operation on the BNC port

     10base5/AUI      Set 10Mbps operation on the AUI port

     100baseTX	      Set 100Mbps (Fast Ethernet) operation

     100baseFX	      Set 100Mbps operation

     100baseT4	      Set 100Mbps operation (4-pair cat-3 cable)

     The de driver supports the following media options:

     full-duplex      Set full duplex operation

     Note that the media types available depend on the particular card	in  use.
     Some  cards are explicitly programmed to a particular media type by a setup
     utility and are not changeable.

     Use the ifconfig(8) command and in particular the -m flag to list the  sup-
     ported media types for your particular card.

     The old "ifconfig linkN" method of configuration is not supported.

HARDWARE
     Adapters supported by the de driver include:

     *	 Adaptec ANA-6944/TX
     *	 Cogent EM100FX and EM440TX
     *	 Corega FastEther PCI-TX
     *	 D-Link DFE-500TX
     *	 DEC DE435, DEC DE450, and DEC DE500
     *	 ELECOM LD-PCI2T, LD-PCITS
     *	 I-O DATA LA2/T-PCI
     *	 SMC Etherpower 8432, 9332 and 9334
     *	 ZNYX ZX3xx

DIAGNOSTICS
     de%d: waking device from sleep/snooze mode  The 21041 and 21140A chips sup-
     port suspending the operation of the card.

     de%d:  error:  desired  IRQ of %d does not match device's actual IRQ of %d
     The device probe detected that the board is configured for a different  in-
     terrupt than the one specified in the kernel configuration file.

     de%d:  not configured; limit of %d reached or exceeded  There is a limit of
     32 de devices allowed in a single machine.

     de%d: not configured; 21040 pass 2.0 required (%d.%d found)
     de%d: not configured; 21140 pass 1.1 required (%d.%d found)  Certain  revi-
     sions of the chipset are not supported by this driver.

SEE ALSO
     altq(4), arp(4), netintro(4), ng_ether(4), ifconfig(8)

AUTHORS
     The  de  device  driver  was  written by Matt Thomas.  This manual page was
     written by David E. O'Brien.

FreeBSD 9.1			  July 16, 2005 			   DE(4)
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