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 November 24, 2015 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 uether" 44.Cd "device rue" 45.Ed 46.Pp 47Alternatively, to load the driver as a 48module at boot time, place the following line in 49.Xr loader.conf 5 : 50.Bd -literal -offset indent 51if_rue_load="YES" 52.Ed 53.Sh DESCRIPTION 54The 55.Nm 56driver provides support for USB Ethernet adapters based on the RealTek 57RTL8150 USB to Fast Ethernet controller chip. 58.Pp 59The RTL8150 contains an integrated Fast Ethernet MAC, which supports 60both 10 and 100Mbps speeds in either full or half duplex. 61Although designed to interface with 62100Mbps peripheral, the existing USB standard specifies a maximum 63transfer speed of 12Mbps. 64Users should therefore not expect to actually 65achieve 100Mbps speeds with this device. 66.Pp 67The 68.Nm 69driver supports the following media types: 70.Bl -tag -width ".Cm 10baseT/UTP" 71.It Cm autoselect 72Enable auto selection of the media type and options. 73The user can manually override 74the auto selected 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 select either 82.Cm full-duplex 83or 84.Cm half-duplex 85modes. 86.It Cm 100baseTX 87Set 100Mbps (Fast Ethernet) operation. 88The 89.Cm mediaopt 90option can also be used to select either 91.Cm full-duplex 92or 93.Cm half-duplex 94modes. 95.El 96.Pp 97The 98.Nm 99driver supports the following media options: 100.Bl -tag -width ".Cm 10baseT/UTP" 101.It Cm full-duplex 102Force full duplex operation. 103.It Cm half-duplex 104Force half duplex operation. 105.El 106.Pp 107For more information on configuring this device, see 108.Xr ifconfig 8 . 109.Sh HARDWARE 110The 111.Nm 112driver supports RealTek RTL8150 based USB Ethernet 113adapters including: 114.Pp 115.Bl -bullet -compact 116.It 117Buffalo (Melco Inc.) LUA-KTX 118.It 119Green House GH-USB100B 120.It 121LinkSys USB100M 122.It 123Billionton 10/100 FastEthernet USBKR2 124.El 125.Sh DIAGNOSTICS 126.Bl -diag 127.It "rue%d: watchdog timeout" 128A packet was queued for transmission and a transmit command was 129issued, however the device failed to acknowledge the transmission 130before a timeout expired. 131.It "rue%d: rx list init failed" 132The driver failed to allocate an mbuf for the transmitter ring. 133.It "rue%d: no memory for rx list" 134The driver failed to allocate an mbuf for the receiver ring. 135.El 136.Sh SEE ALSO 137.Xr arp 4 , 138.Xr miibus 4 , 139.Xr netintro 4 , 140.Xr ng_ether 4 , 141.Xr ifconfig 8 142.Rs 143.%T "RealTek RTL8150 data sheet" 144.%U http://pdf.seekdatasheet.com/2008714/200807142333305235.pdf 145.Re 146.Sh HISTORY 147The 148.Nm 149device driver first appeared in 150.Fx 5.1 . 151.Sh AUTHORS 152The 153.Nm 154driver was written by 155.An Shunsuke Akiyama Aq Mt akiyama@FreeBSD.org . 156