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XE(4)                  FreeBSD Kernel Interfaces Manual                  XE(4)

     xe -- Xircom PCMCIA Ethernet device driver

     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):


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

     Please note that the xe driver only supports PCMCIA cards and their Eth-
     ernet functions.  xe does not support the on-board modem device located
     on some version of the Ethernet/modem combo cards.  In particular, Xircom
     RealPort2 cards are not supported by this driver.

     The xe driver supports the following media types:

     autoselect  Enable autoselection of media type and options.

                 Select 10Mbps operation on a BNC coaxial connector.

                 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
     operation is currently not supported.  For more information on configur-
     ing network interface devices, see ifconfig(8).

     The xe driver supports the following cards:

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

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

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

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

     xe%d: watchdog timeout: resetting card  The card failed to generate an
     interrupt acknowledging a transmitted packet.  May indicate a PCMCIA con-
     figuration problem.

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

     pccard(4), ifconfig(8)

     The xe driver first appeared in FreeBSD 3.3.

     The xe device driver was written by Scott Mitchell <>.
     This manual page was written by Scott Mitchell <>, and Tom
     Rhodes <>.

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

     Automatic media selection is usually unreliable.

FreeBSD 6.2                      July 16, 2005                     FreeBSD 6.2


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