1.\" 2.\" Copyright (c) 2001-2003, Shunsuke Akiyama <akiyama@FreeBSD.org>. 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd July 23, 2011 29.Dt RUE 4 30.Os 31.Sh NAME 32.Nm rue 33.Nd "RealTek RTL8150 USB to Fast Ethernet controller driver" 34.Sh SYNOPSIS 35To compile this driver into the kernel, 36place the following lines in your 37kernel configuration file: 38.Bd -ragged -offset indent 39.Cd "device uhci" 40.Cd "device ohci" 41.Cd "device usb" 42.Cd "device miibus" 43.Cd "device rue" 44.Ed 45.Pp 46Alternatively, to load the driver as a 47module at boot time, place the following line in 48.Xr loader.conf 5 : 49.Bd -literal -offset indent 50if_rue_load="YES" 51.Ed 52.Sh DESCRIPTION 53The 54.Nm 55driver provides support for USB Ethernet adapters based on the RealTek 56RTL8150 USB to Fast Ethernet controller chip. 57.Pp 58The RTL8150 contains an integrated Fast Ethernet MAC, which supports 59both 10 and 100Mbps speeds in either full or half duplex. 60Although designed to interface with 61100Mbps peripheral, the existing USB standard specifies a maximum 62transfer speed of 12Mbps. 63Users should therefore not expect to actually 64achieve 100Mbps speeds with this device. 65.Pp 66The 67.Nm 68driver supports the following media types: 69.Bl -tag -width ".Cm 10baseT/UTP" 70.It Cm autoselect 71Enable auto selection of the media type and options. 72The user can manually override 73the auto selected mode by adding media options to the 74.Pa /etc/rc.conf 75file. 76.It Cm 10baseT/UTP 77Set 10Mbps operation. 78The 79.Cm mediaopt 80option can also be used to select either 81.Cm full-duplex 82or 83.Cm half-duplex 84modes. 85.It Cm 100baseTX 86Set 100Mbps (Fast Ethernet) operation. 87The 88.Cm mediaopt 89option can also be used to select either 90.Cm full-duplex 91or 92.Cm half-duplex 93modes. 94.El 95.Pp 96The 97.Nm 98driver supports the following media options: 99.Bl -tag -width ".Cm 10baseT/UTP" 100.It Cm full-duplex 101Force full duplex operation. 102.It Cm half-duplex 103Force half duplex operation. 104.El 105.Pp 106For more information on configuring this device, see 107.Xr ifconfig 8 . 108.Sh HARDWARE 109The 110.Nm 111driver supports RealTek RTL8150 based USB Ethernet 112adapters including: 113.Pp 114.Bl -bullet -compact 115.It 116Buffalo (Melco Inc.) LUA-KTX 117.It 118Green House GH-USB100B 119.It 120LinkSys USB100M 121.It 122Billionton 10/100 FastEthernet USBKR2 123.El 124.Sh DIAGNOSTICS 125.Bl -diag 126.It "rue%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 "rue%d: rx list init failed" 131The driver failed to allocate an mbuf for the transmitter ring. 132.It "rue%d: no memory for rx list" 133The driver failed to allocate an mbuf for the receiver ring. 134.El 135.Sh SEE ALSO 136.Xr arp 4 , 137.Xr miibus 4 , 138.Xr netintro 4 , 139.Xr ng_ether 4 , 140.Xr ifconfig 8 141.Rs 142.%T "RealTek RTL8150 data sheet" 143.%U http://pdf.seekdatasheet.com/2008714/200807142333305235.pdf 144.Re 145.Sh HISTORY 146The 147.Nm 148device driver first appeared in 149.Fx 5.1 . 150.Sh AUTHORS 151The 152.Nm 153driver was written by 154.An Shunsuke Akiyama Aq akiyama@FreeBSD.org . 155