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 April 20, 2003 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, including the following: 51.Pp 52.Bl -bullet -compact 53.It 54D-Link DUBE100 55.It 56LinkSys USB200M 57.It 58Netgear FA120 59.El 60.Pp 61The AX88172 is a USB 2.0 device which contains a 10/100 62ethernet MAC with MII interface and is designed to work with both 63ethernet and HomePNA transceivers. 64The AX88172 will operate with 65both USB 1.x and USB 2.0 controllers, however performace with 1.x 66contollers will be limited since the USB 1.x standard specifies a 67maximum transfer speed of 12Mbps. 68Users with USB 1.x controllers should therefore not expect to actually 69achieve 100Mbps speeds with these devices. 70.Pp 71The AX88172 supports a 64-bit multicast hash table, single perfect 72filter entry for the station address, all-multicast mode and promiscuous mode. 73Packets are 74received and transmitted over separate USB bulk transfer endpoints. 75.Pp 76The 77.Nm 78driver supports the following media types: 79.Bl -tag -width ".Cm 10baseT/UTP" 80.It Cm autoselect 81Enable autoselection of the media type and options. 82The user can manually override 83the autoselected mode by adding media options to the 84.Pa /etc/rc.conf 85file. 86.It Cm 10baseT/UTP 87Set 10Mbps operation. 88The 89.Cm mediaopt 90option can also be used to enable 91.Cm full-duplex 92operation. 93Not specifying 94.Cm full-duplex 95implies 96.Cm half-duplex 97mode. 98.It Cm 100baseTX 99Set 100Mbps (fast ethernet) operation. 100The 101.Cm mediaopt 102option can also be used to enable 103.Cm full-duplex 104operation. 105Not specifying 106.Cm full-duplex 107implies 108.Cm half-duplex 109mode. 110.El 111.Pp 112The 113.Nm 114driver supports the following media options: 115.Bl -tag -width ".Cm 10baseT/UTP" 116.It Cm full-duplex 117Force full duplex operation. 118The interface will operate in 119half duplex mode if this media option is not specified. 120.El 121.Pp 122For more information on configuring this device, see 123.Xr ifconfig 8 . 124.Sh DIAGNOSTICS 125.Bl -diag 126.It "axe%d: watchdog timeout" 127A packet was queued for transmission and a transmit command was 128issued, however the device failed to acknowledge the transmission 129before a timeout expired. 130.It "axe%d: no memory for rx list" 131The driver failed to allocate an mbuf for the receiver ring. 132.El 133.Sh SEE ALSO 134.Xr arp 4 , 135.Xr miibus 4 , 136.Xr netintro 4 , 137.Xr ng_ether 4 , 138.Xr ifconfig 8 139.Rs 140.%T "ASIX AX88172 data sheet" 141.%O http://www.asix.com.tw 142.Re 143.Sh HISTORY 144The 145.Nm 146device driver first appeared in 147.Fx 5.0 . 148.Sh AUTHORS 149The 150.Nm 151driver was written by 152.An Bill Paul Aq wpaul@windriver.com . 153