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 257408 2013-10-31 01:57:05Z kevlo $
23 .Nd Realtek RTL8188CU/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, RTL8188RU and RTL8192CU chipsets.
56 The RTL8188CUS is a highly integrated 802.11n adapter that combines
57 a MAC, a 1T1R capable baseband and an RF in a single chip.
58 It operates 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
84 The following adapters should work:
86 .Bl -tag -width Ds -offset indent -compact
87 .It Belkin F7D1102 Surf Wireless Micro
92 .It Realtek RTL8188CUS
95 Join an existing BSS network (i.e., connect to an access point):
96 .Bd -literal -offset indent
97 ifconfig wlan create wlandev urtwn0 inet 192.168.0.20 \e
101 Join a specific BSS network with network name
104 .Dl "ifconfig wlan create wlandev urtwn0 ssid my_net up"
106 Join a specific BSS network with 64-bit WEP encryption:
107 .Bd -literal -offset indent
108 ifconfig wlan create wlandev urtwn0 ssid my_net \e
109 wepmode on wepkey 0x1234567890 weptxkey 1 up
113 .It "urtwn%d: error %d, could not read firmware %s"
114 For some reason, the driver was unable to read the microcode file from the
116 The file might be missing or corrupted.
117 .It "urtwn%d: device timeout"
118 A frame dispatched to the hardware for transmission did not complete in time.
119 The driver will reset the hardware.
120 This should not happen.
136 .%O http://www.realtek.com.tw
141 driver first appeared in
148 driver was written by
149 .An Damien Bergamini Aq Mt damien@openbsd.org .
153 driver does not support any of the 802.11n capabilities offered by the