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NAME    [Toc]    [Back]

     axe - ASIX Electronics AX88172 USB Ethernet driver

SYNOPSIS    [Toc]    [Back]

     axe*   at uhub? port ?
     ukphy* at mii?

DESCRIPTION    [Toc]    [Back]

     The axe driver provides support for  USB  Ethernet  adapters
based on the
     ASIX Electronics AX88172 USB 2.0 chipset, including the following:

     +o   D-Link DUBE100
     +o   LinkSys USB200M
     +o   Netgear FA120
     +o   Buffalo(MELCO) LUA-U2-KTX

     The AX88172 is a USB 2.0 device which contains a 10/100 Ethernet MAC with
     MII interface and is designed to work with both Ethernet and
     transceivers.  The AX88172 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.

     The AX88172 supports 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 (this is
                 the default).  The user  can  manually  override
the autoselected
 mode by adding media options to the appropriate
                 hostname.if(5) file.

     10baseT     Set 10Mbps operation.

     100baseTX   Set 100Mbps (Fast Ethernet) operation.

     The driver supports the following media options:

     full-duplex  Force full-duplex operation.

     half-duplex  Force half-duplex operation.

     The interface will operate in half-duplex mode if  no  media
option is

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

DIAGNOSTICS    [Toc]    [Back]

     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.

SEE ALSO    [Toc]    [Back]

     arp(4),  ifmedia(4),  intro(4),  netintro(4),  usb(4), hostname.if(5),

     ASIX AX88172 data sheet, http://www.asix.com.tw.

HISTORY    [Toc]    [Back]

     The axe device driver first appeared in OpenBSD 3.6.

AUTHORS    [Toc]    [Back]

     The axe driver was  written  by  Bill  Paul  <wpaul@windriver.com> and ported
     to OpenBSD by
     Greg Taleck <taleck@oz.net>.

OpenBSD      3.6                          April      20,     2003
[ Back ]
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