1.\" Copyright (c) 1997, 1998, 1999, 2000-2003 2.\" Bill Paul <wpaul@windriver.com>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by Bill Paul. 15.\" 4. Neither the name of the author nor the names of any co-contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 23.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 29.\" THE POSSIBILITY OF SUCH DAMAGE. 30.\" 31.\" $FreeBSD$ 32.\" 33.Dd August 25, 2004 34.Dt AXE 4 35.Os 36.Sh NAME 37.Nm axe 38.Nd ASIX Electronics AX88172 USB Ethernet driver 39.Sh SYNOPSIS 40.Cd "device ehci" 41.Cd "device uhci" 42.Cd "device ohci" 43.Cd "device usb" 44.Cd "device miibus" 45.Cd "device axe" 46.Sh DESCRIPTION 47The 48.Nm 49driver provides support for USB Ethernet adapters based on the ASIX 50Electronics AX88172 USB 2.0 chipset. 51.Pp 52The AX88172 is a USB 2.0 device which contains a 10/100 53Ethernet MAC with MII interface and is designed to work with both 54Ethernet and HomePNA transceivers. 55The AX88172 will operate with 56both USB 1.x and USB 2.0 controllers, however performance with 1.x 57controllers will be limited since the USB 1.x standard specifies a 58maximum transfer speed of 12Mbps. 59Users with USB 1.x controllers should therefore not expect to actually 60achieve 100Mbps speeds with these devices. 61.Pp 62The AX88172 supports a 64-bit multicast hash table, single perfect 63filter entry for the station address, all-multicast mode and promiscuous mode. 64Packets are 65received and transmitted over separate USB bulk transfer endpoints. 66.Pp 67The 68.Nm 69driver supports the following media types: 70.Bl -tag -width ".Cm 10baseT/UTP" 71.It Cm autoselect 72Enable autoselection of the media type and options. 73The user can manually override 74the autoselected mode by adding media options to the 75.Pa /etc/rc.conf 76file. 77.It Cm 10baseT/UTP 78Set 10Mbps operation. 79The 80.Cm mediaopt 81option can also be used to enable 82.Cm full-duplex 83operation. 84Not specifying 85.Cm full-duplex 86implies 87.Cm half-duplex 88mode. 89.It Cm 100baseTX 90Set 100Mbps (Fast Ethernet) operation. 91The 92.Cm mediaopt 93option can also be used to enable 94.Cm full-duplex 95operation. 96Not specifying 97.Cm full-duplex 98implies 99.Cm half-duplex 100mode. 101.El 102.Pp 103The 104.Nm 105driver supports the following media options: 106.Bl -tag -width ".Cm 10baseT/UTP" 107.It Cm full-duplex 108Force full duplex operation. 109The interface will operate in 110half duplex mode if this media option is not specified. 111.El 112.Pp 113For more information on configuring this device, see 114.Xr ifconfig 8 . 115.Sh HARDWARE 116The 117.Nm 118driver supports ASIX Electronics AX88172 based USB Ethernet 119adapters including: 120.Pp 121.Bl -bullet -compact 122.It 123Buffalo (Melco Inc.) LUA-U2-KTX 124.It 125D-Link DUBE100 126.It 127LinkSys USB200M 128.It 129Netgear FA120 130.It 131System TALKS Inc. SGC-X2UL 132.El 133.Sh DIAGNOSTICS 134.Bl -diag 135.It "axe%d: watchdog timeout" 136A packet was queued for transmission and a transmit command was 137issued, however the device failed to acknowledge the transmission 138before a timeout expired. 139.It "axe%d: no memory for rx list" 140The driver failed to allocate an mbuf for the receiver ring. 141.El 142.Sh SEE ALSO 143.Xr arp 4 , 144.Xr miibus 4 , 145.Xr netintro 4 , 146.Xr ng_ether 4 , 147.Xr ifconfig 8 148.Rs 149.%T "ASIX AX88172 data sheet" 150.%O http://www.asix.com.tw 151.Re 152.Sh HISTORY 153The 154.Nm 155device driver first appeared in 156.Fx 5.0 . 157.Sh AUTHORS 158The 159.Nm 160driver was written by 161.An Bill Paul Aq wpaul@windriver.com . 162