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.\" Copyright (c) 2008 Weongyo Jeong
.\" All rights reserved.
.\"
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.\" $FreeBSD: release/9.1.0/share/man/man4/urtw.4 213573 2010-10-08 12:40:16Z uqs $
.\"
.Dd October 17, 2009
.Dt URTW 4
.Os
.Sh NAME
.Nm urtw
.Nd Realtek RTL8187B/L USB IEEE 802.11b/g wireless network device
.Sh SYNOPSIS
To compile this driver into the kernel,
place the following lines in your kernel configuration file:
.Bd -ragged -offset indent
.Cd "device ehci"
.Cd "device uhci"
.Cd "device ohci"
.Cd "device usb"
.Cd "device urtw"
.Cd "device wlan"
.Ed
.Pp
Alternatively, to load the driver as a module at boot time,
place the following line in
.Xr loader.conf 5 :
.Bd -literal -offset indent
if_urtw_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
driver supports USB 802.11b/g wireless adapters based on the
Realtek RTL8187B/L.
.Pp
.Nm
supports
.Cm station
and
.Cm monitor
mode operation.
Only one virtual interface may be configured at any time.
For more information on configuring this device, see
.Xr ifconfig 8 .
.Sh HARDWARE
The
.Nm
driver supports Realtek RTL8187B/L based wireless network devices, including:
.Pp
.Bl -column "Shuttle XPC Accessory PN20" "RTL8225" "USB" -compact -offset 6n
.It Em "Card	Radio	Bus"
.It "Belkin F5D7050E	RTL8225	USB"
.It "Linksys WUSB54GCv2	RTL8225	USB"
.It "Netgear WG111v2	RTL8225	USB"
.It "Netgear WG111v3	RTL8225	USB"
.It "Safehome WLG-1500SMA5	RTL8225	USB"
.It "Shuttle XPC Accessory PN20	RTL8225	USB"
.It "Sitecom WL168v1	RTL8225	USB"
.It "Sitecom WL168v4	RTL8225	USB"
.It "SureCom EP-9001-g(2A)	RTL8225	USB"
.It "TRENDnet TEW-424UB V3.xR	RTL8225	USB"
.El
.Sh EXAMPLES
Join an existing BSS network (i.e., connect to an access point):
.Bd -literal -offset indent
ifconfig wlan create wlandev urtw0 inet 192.168.0.20 \e
    netmask 0xffffff00
.Ed
.Pp
Join a specific BSS network with network name
.Dq Li my_net :
.Pp
.Dl "ifconfig wlan create wlandev urtw0 ssid my_net up"
.Pp
Join a specific BSS network with 64-bit WEP encryption:
.Bd -literal -offset indent
ifconfig wlan create wlandev urtw0 ssid my_net \e
	wepmode on wepkey 0x1234567890 weptxkey 1 up
.Ed
.Sh SEE ALSO
.Xr intro 4 ,
.Xr netintro 4 ,
.Xr usb 4 ,
.Xr wlan 4 ,
.Xr wlan_ccmp 4 ,
.Xr wlan_tkip 4 ,
.Xr wlan_wep 4 ,
.Xr ifconfig 8 ,
.Xr wpa_supplicant 8
.Rs
.%T Realtek
.%U http://www.realtek.com.tw
.Re
.Sh HISTORY
The
.Nm
device driver first appeared in
.Fx 8.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An Weongyo Jeong
.Aq weongyo@FreeBSD.org .

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