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     axe — ASIX Electronics AX88x7x/760 USB Ethernet driver


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

           device ehci
           device uhci
           device ohci
           device usb
           device miibus
           device uether
           device axe

     Alternatively, to load the driver as a module at boot time, place the following line in



     The axe driver provides support for USB Ethernet adapters based on the ASIX Electronics
     AX88172, AX88178, AX88772, AX88772A, AX88772B and AX88760 USB 2.0 chipsets.

     The AX88172, AX88772, AX88772A, AX88772B and AX88760 contain a 10/100 Ethernet MAC with MII
     interface and are designed to work with both Ethernet and HomePNA transceivers.  The AX88178
     has a 10/100/1000 Ethernet MAC with GMII/RGMII interface for interfacing with Gigabit
     Ethernet PHY.

     These devices will operate with both USB 1.x and USB 2.0 controllers, however performance
     with 1.x controllers will be limited since the USB 1.x standard specifies a maximum transfer
     speed of 12Mbps.  Users with USB 1.x controllers should therefore not expect to actually
     achieve 100Mbps speeds with these devices.

     All chipsets support a 64-bit multicast hash table, single perfect filter entry for the
     station address, all-multicast mode and promiscuous mode.  Packets are received and
     transmitted over separate USB bulk transfer endpoints.

     The axe driver supports the following media types:

     autoselect   Enable autoselection of the media type and options.  The user can manually
                  override the autoselected mode by adding media options to rc.conf(5).

     10baseT/UTP  Set 10Mbps operation.  The ifconfig(8) mediaopt option can also be used to
                  select either full-duplex or half-duplex modes.

     100baseTX    Set 100Mbps (Fast Ethernet) operation.  The ifconfig(8) mediaopt option can
                  also be used to select either full-duplex or half-duplex modes.

     1000baseT    Set 1000Mbps (Gigabit Ethernet) operation (AX88178 only).  The ifconfig(8)
                  mediaopt option can also be used to select either full-duplex or half-duplex

     The axe driver supports the following media options:

     full-duplex  Force full duplex operation.

     half-duplex  Force half duplex operation.

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


     The axe driver supports ASIX Electronics AX88172/AX88178/AX88772/AX88772A/AX88772B/AX88760
     based USB Ethernet adapters including:

        AboCom UF200
        Acer Communications EP1427X2
        ASIX AX88172
        ATen UC210T
        Billionton SnapPort
        Billionton USB2AR
        Buffalo (Melco Inc.) LUA-U2-KTX
        Corega USB2_TX
        D-Link DUBE100
        Goodway GWUSB2E
        JVC MP_PRX1
        LinkSys USB200M
        Netgear FA120
        Sitecom LN-029
        System TALKS Inc. SGC-X2UL

        ASIX AX88178
        Belkin F5D5055
        Logitec LAN-GTJ/U2A
        Buffalo (Melco Inc.) LUA3-U2-AGT
        Planex Communications GU1000T
        Sitecom Europe LN-028

        ASIX AX88772
        Buffalo (Melco Inc.) LUA3-U2-ATX
        D-Link DUBE100B1
        Planex UE-200TX-G
        Planex UE-200TX-G2

        ASIX AX88772A
        Cisco-Linksys USB200Mv2

        ASIX AX88772B
        Lenovo USB 2.0 Ethernet

        ASIX AX88760


     axe%d: watchdog timeout  A packet was queued for transmission and a transmit command was
     issued, however the device failed to acknowledge the transmission before a timeout expired.

     axe%d: no memory for rx list  The driver failed to allocate an mbuf for the receiver ring.


     altq(4), arp(4), miibus(4), netintro(4), ng_ether(4), rgephy(4), vlan(4), ifconfig(8)

     ASIX AX88x7x and AX88760 data sheets,


     The axe device driver first appeared in FreeBSD 5.0.


     The axe driver was written by Bill Paul <>.