2 .\" Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
4 .\" Permission to use, copy, modify, and distribute this software for any
5 .\" purpose with or without fee is hereby granted, provided that the above
6 .\" copyright notice and this permission notice appear in all copies.
8 .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 .\" $FreeBSD: head/share/man/man4/urtwn.4 289399 2015-10-16 00:38:05Z bdrewery $
23 .Nd Realtek RTL8188CU/RTL8188RU/RTL8188EU/RTL8192CU USB IEEE 802.11b/g/n wireless network device
25 To compile this driver into the kernel,
26 place the following lines in your
27 kernel configuration file:
28 .Bd -ragged -offset indent
37 Alternatively, to load the driver as a
38 module at boot time, place the following line in
40 .Bd -literal -offset indent
44 In both cases, place the following line in
46 to acknowledge the firmware license (see below):
47 .Bd -literal -offset indent
48 legal.realtek.license_ack=1
53 driver supports USB 2.0 wireless network devices based on Realtek
54 RTL8188CUS, RTL8188CE-VAU, RTL8188EUS, RTL8188RU and RTL8192CU chipsets.
56 The RTL8188CUS and RTL8188EUS are highly integrated 802.11n adapters that
57 combine a MAC, a 1T1R capable baseband and an RF in a single chip.
58 They operate in the 2GHz spectrum only.
59 The RTL8188RU is a high-power variant of the RTL8188CUS.
60 The RTL8188CE-VAU is a PCI Express Mini Card adapter that attaches
63 The RTL8192CU is a highly integrated multiple-in, multiple-out (MIMO)
64 802.11n adapter that combines a MAC, a 2T2R capable baseband and an
66 It operates in the 2GHz spectrum only.
68 This driver requires the firmware built with the
71 For the loaded firmware to be enabled for use the license at
72 .Pa /usr/share/doc/legal/realtek/LICENSE
73 must be agreed to by adding the following line to
76 .Dl "legal.realtek.license_ack=1"
78 .Bl -tag -width ".Pa /usr/share/doc/legal/realtek/LICENSE" -compact
79 .It Pa /usr/share/doc/legal/realtek/LICENSE
86 driver supports Realtek RTL8188CU/RTL8188RU/RTL8188EU/RTL8192CU based USB
87 IEEE 802.11b/g/n wireless network adapters, including:
89 .Bl -tag -width Ds -offset indent -compact
90 .It Adafruit USB WiFi (802.11b/g/n) Module
91 .It Alfa AWUS036NHR v2
93 .It Belkin F7D1102 Surf Wireless Micro
94 .It D-Link DWA-123 rev \&D1
95 .It D-Link DWA-125 rev \&D1
98 .It Elecom WDC-150SU2M
100 .It Realtek RTL8192CU
101 .It Realtek RTL8188CUS
102 .It TP-LINK TL-WN723N v3
103 .It TP-LINK TL-WN725N v2
106 Join an existing BSS network (i.e., connect to an access point):
107 .Bd -literal -offset indent
108 ifconfig wlan create wlandev urtwn0 inet 192.168.0.20 \e
112 Join a specific BSS network with network name
115 .Dl "ifconfig wlan create wlandev urtwn0 ssid my_net up"
117 Join a specific BSS network with 64-bit WEP encryption:
118 .Bd -literal -offset indent
119 ifconfig wlan create wlandev urtwn0 ssid my_net \e
120 wepmode on wepkey 0x1234567890 weptxkey 1 up
124 .It "urtwn%d: error %d, could not read firmware %s"
125 For some reason, the driver was unable to read the microcode file from the
127 The file might be missing or corrupted.
128 .It "urtwn%d: device timeout"
129 A frame dispatched to the hardware for transmission did not complete in time.
130 The driver will reset the hardware.
131 This should not happen.
147 .%O http://www.realtek.com.tw
152 driver first appeared in
159 driver was written by
160 .An Damien Bergamini Aq Mt damien@openbsd.org .
164 driver does not support any of the 802.11n capabilities offered by the