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.Dd November 24, 2015 27.Dt RUE 4 28.Os 29.Sh NAME 30.Nm rue 31.Nd "RealTek RTL8150 USB to Fast Ethernet controller driver" 32.Sh SYNOPSIS 33To compile this driver into the kernel, 34place the following lines in your 35kernel configuration file: 36.Bd -ragged -offset indent 37.Cd "device uhci" 38.Cd "device ohci" 39.Cd "device usb" 40.Cd "device miibus" 41.Cd "device uether" 42.Cd "device rue" 43.Ed 44.Pp 45Alternatively, to load the driver as a 46module at boot time, place the following line in 47.Xr loader.conf 5 : 48.Bd -literal -offset indent 49if_rue_load="YES" 50.Ed 51.Sh DESCRIPTION 52The 53.Nm 54driver provides support for USB Ethernet adapters based on the RealTek 55RTL8150 USB to Fast Ethernet controller chip. 56.Pp 57The RTL8150 contains an integrated Fast Ethernet MAC, which supports 58both 10 and 100Mbps speeds in either full or half duplex. 59Although designed to interface with 60100Mbps peripheral, the existing USB standard specifies a maximum 61transfer speed of 12Mbps. 62Users should therefore not expect to actually 63achieve 100Mbps speeds with this device. 64.Pp 65The 66.Nm 67driver supports the following media types: 68.Bl -tag -width ".Cm 10baseT/UTP" 69.It Cm autoselect 70Enable auto selection of the media type and options. 71The user can manually override 72the auto selected mode by adding media options to the 73.Pa /etc/rc.conf 74file. 75.It Cm 10baseT/UTP 76Set 10Mbps operation. 77The 78.Cm mediaopt 79option can also be used to select either 80.Cm full-duplex 81or 82.Cm half-duplex 83modes. 84.It Cm 100baseTX 85Set 100Mbps (Fast Ethernet) operation. 86The 87.Cm mediaopt 88option can also be used to select either 89.Cm full-duplex 90or 91.Cm half-duplex 92modes. 93.El 94.Pp 95The 96.Nm 97driver supports the following media options: 98.Bl -tag -width ".Cm 10baseT/UTP" 99.It Cm full-duplex 100Force full duplex operation. 101.It Cm half-duplex 102Force half duplex operation. 103.El 104.Pp 105For more information on configuring this device, see 106.Xr ifconfig 8 . 107.Sh HARDWARE 108The 109.Nm 110driver supports RealTek RTL8150 based USB Ethernet 111adapters including: 112.Pp 113.Bl -bullet -compact 114.It 115Buffalo (Melco Inc.) LUA-KTX 116.It 117Green House GH-USB100B 118.It 119LinkSys USB100M 120.It 121Billionton 10/100 FastEthernet USBKR2 122.El 123.Sh DIAGNOSTICS 124.Bl -diag 125.It "rue%d: watchdog timeout" 126A packet was queued for transmission and a transmit command was 127issued, however the device failed to acknowledge the transmission 128before a timeout expired. 129.It "rue%d: rx list init failed" 130The driver failed to allocate an mbuf for the transmitter ring. 131.It "rue%d: no memory for rx list" 132The driver failed to allocate an mbuf for the receiver ring. 133.El 134.Sh SEE ALSO 135.Xr arp 4 , 136.Xr miibus 4 , 137.Xr netintro 4 , 138.Xr ng_ether 4 , 139.Xr ifconfig 8 140.Rs 141.%T "RealTek RTL8150 data sheet" 142.%U http://pdf.seekdatasheet.com/2008714/200807142333305235.pdf 143.Re 144.Sh HISTORY 145The 146.Nm 147device driver first appeared in 148.Fx 5.1 . 149.Sh AUTHORS 150The 151.Nm 152driver was written by 153.An Shunsuke Akiyama Aq Mt akiyama@FreeBSD.org . 154