1.\" 2.\" Copyright (c) 2015-2016 Kevin Lo <kevlo@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 October 31, 2016 29.Dt URE 4 30.Os 31.Sh NAME 32.Nm ure 33.Nd "RealTek RTL8152/RTL8153 USB to 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 ure" 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_ure_load="YES" 52.Ed 53.Sh DESCRIPTION 54The 55.Nm 56driver provides support for USB Ethernet adapters based on the RealTek 57RealTek RTL8152 and RTL8153 USB Ethernet controllers. 58.Pp 59NICs based on the RTL8152 are capable of 10 and 100Mbps speeds. 60NICs based on the RTL8153 are capable of 10, 100 and 1000Mbps operation. 61.Pp 62The 63.Nm 64driver supports the following media types: 65.Bl -tag -width ".Cm 10baseT/UTP" 66.It Cm autoselect 67Enable auto selection of the media type and options. 68The user can manually override 69the auto selected mode by adding media options to the 70.Pa /etc/rc.conf 71file. 72.It Cm 10baseT/UTP 73Set 10Mbps operation. 74The 75.Cm mediaopt 76option can also be used to select either 77.Cm full-duplex 78or 79.Cm half-duplex 80modes. 81.It Cm 100baseTX 82Set 100Mbps (Fast Ethernet) operation. 83The 84.Cm mediaopt 85option can also be used to select either 86.Cm full-duplex 87or 88.Cm half-duplex 89modes. 90.It Cm 1000baseTX 91Set 1000baseTX operation over twisted pair. 92The RealTek gigE chips support 1000Mbps in 93.Cm full-duplex 94mode only. 95.El 96.Pp 97The 98.Nm 99driver supports the following media options: 100.Bl -tag -width ".Cm full-duplex" 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 DIAGNOSTICS 110.Bl -diag 111.It "ure%d: watchdog timeout" 112A packet was queued for transmission and a transmit command was 113issued, however the device failed to acknowledge the transmission 114before a timeout expired. 115.El 116.Sh SEE ALSO 117.Xr arp 4 , 118.Xr miibus 4 , 119.Xr netintro 4 , 120.Xr ng_ether 4 , 121.Xr ifconfig 8 122.Sh AUTHORS 123The 124.Nm 125driver was written by 126.An Kevin Lo Aq Mt kevlo@FreeBSD.org . 127