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AXE(4)			 BSD Kernel Interfaces Manual			AXE(4)

NAME
     axe — ASIX Electronics AX88172/178/772 USB Ethernet driver

SYNOPSIS
     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 axe

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

	   if_axe_load="YES"

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

     The AX88172 and AX88178 are USB 2.0 devices that contain a 10/100 Ether‐
     net MAC with MII interface and are designed to work with both Ethernet
     and HomePNA transceivers.	The AX88772 will additionally support
     10/100/1000 MACs.

     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 end‐
     points.

     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 the /etc/rc.conf file.

     10baseT/UTP  Set 10Mbps operation.	 The mediaopt option can also be used
		  to enable full-duplex operation.  Not specifying full-duplex
		  implies half-duplex mode.

     100baseTX	  Set 100Mbps (Fast Ethernet) operation.  The mediaopt option
		  can also be used to enable full-duplex operation.  Not spec‐
		  ifying full-duplex implies half-duplex mode.

     The axe driver supports the following media options:

     full-duplex  Force full duplex operation.	The interface will operate in
		  half duplex mode if this media option is not specified.

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

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

     AX88172:
     ·	 AboCom UF200
     ·	 Acer Communications EP1427X2
     ·	 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

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

     AX88772:
     ·	 Buffalo (Melco Inc.) LUA3-U2-ATX
     ·	 Cisco-Linksys USB200Mv2
     ·	 D-Link DUBE100B1
     ·	 Planex UE-200TX-G
     ·	 Planex UE-200TX-G2

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

     ASIX AX88172 AX88178 and AX88772 data sheets, http://www.asix.com.tw.

HISTORY
     The axe device driver first appeared in FreeBSD 5.0.

AUTHORS
     The axe driver was written by Bill Paul ⟨wpaul@windriver.com⟩.

BSD			       January 16, 2011				   BSD
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