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XE(4)			     Kernel Interfaces Manual			   XE(4)

NAME
     xe -- Xircom PCMCIA Ethernet device driver

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

	   device xe

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

	   if_xe_load="YES"

DESCRIPTION
     The  xe  driver  supports PCMCIA Ethernet adapters based on Xircom CE2- and
     CE3-class hardware.  This includes devices made by Xircom along with  vari-
     ous OEM manufacturers.

     Please  note that the xe driver only supports PCMCIA cards and their Ether-
     net functions.  xe does not support the on-board modem  device  located  on
     some  version of the Ethernet/modem combo cards.  In particular, Xircom Re-
     alPort2 cards are not supported by this driver.

     The xe driver supports the following media types:

     autoselect  Enable autoselection of media type and options.

     10Base2/BNC
		 Select 10Mbps operation on a BNC coaxial connector.

     10BaseT/UTP
		 Select 10Mbps operation on a RJ-45 connector.

     100BaseTX	 Select 100Mbps operation.

     Note that 100BaseTX operation is not available on	CE2-class  cards,  while
     the 10Base2/BNC mode is only available on CE2-class cards.  Full-duplex op-
     eration  is  currently  not supported.  For more information on configuring
     network interface devices, see ifconfig(8).

HARDWARE
     The xe driver supports the following cards:

     *	 Xircom CreditCard Ethernet (PS-CE2-10)
     *	 Xircom CreditCard Ethernet + Modem 28 (PS-CEM-28)
     *	 Xircom CreditCard Ethernet + Modem 33 (CEM33)
     *	 Xircom CreditCard 10/100 (CE3, CE3B)
     *	 Xircom CreditCard Ethernet 10/100 + Modem 56 (CEM56)
     *	 Xircom RealPort Ethernet 10 (RE10)
     *	 Xircom RealPort Ethernet 10/100 (RE100)
     *	 Xircom RealPort Ethernet 10/100 + Modem 56 (REM56, REM56G)
     *	 Accton Fast EtherCard-16 (EN2226)
     *	 Compaq Microcom CPQ550 Ethernet/Modem PC Card
     *	 Compaq Netelligent 10/100 PC Card (CPQ-10/100)
     *	 Intel EtherExpress Pro/100 PC Card Mobile Adapter 16 (Pro/100 M16A)
     *	 Intel EtherExpress Pro/100 LAN/Modem PC Card Adapter (Pro/100 M16B)

     Other similar devices using the same hardware may also be supported.

DIAGNOSTICS
     xe%d: Cannot allocate ioport
     xe%d: Cannot allocate irq	A fatal initialization error occurred while  at-
     tempting to allocate system resources for the card.

     xe%d:  Unable  to	fix your %s combo card	A fatal initialization error oc-
     curred while attempting to attach an Ethernet/modem combo card.

     xe%d: watchdog timeout: resetting card  The card failed to generate an  in-
     terrupt acknowledging a transmitted packet.  May indicate a PCMCIA configu-
     ration problem.

     xe%d: no carrier  The card has lost all contact with the network; this usu-
     ally indicates a cable problem.

SEE ALSO
     pccard(4), ifconfig(8)

HISTORY
     The xe driver first appeared in FreeBSD 3.3.

AUTHORS
     The xe device driver was written by Scott Mitchell <rsm@FreeBSD.org>.  This
     manual page was written by Scott Mitchell <rsm@FreeBSD.org>, and Tom Rhodes
     <trhodes@FreeBSD.org>.

BUGS
     Supported devices will fail to attach on some machines using the NEWCARD PC
     Card framework.

     Automatic media selection is usually unreliable.

FreeBSD 9.1			  July 16, 2005 			   XE(4)
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