1 .\" $OpenBSD: rsu.4,v 1.11 2013/02/14 07:40:42 jmc Exp $
4 .\" Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
6 .\" Permission to use, copy, modify, and distribute this software for any
7 .\" purpose with or without fee is hereby granted, provided that the above
8 .\" copyright notice and this permission notice appear in all copies.
10 .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 .Nd Realtek RTL8188SU/RTL8192SU USB IEEE 802.11b/g/n wireless network device
25 To compile this driver into the kernel,
26 place the following lines in your kernel configuration file:
27 .Bd -ragged -offset indent
36 Alternatively, to load the driver as a module at boot time,
37 place the following line in
39 .Bd -literal -offset indent
43 After you have read the license in
44 .Pa /usr/share/doc/legal/realtek.LICENSE
45 you will want to add the following lines to
47 .Bd -literal -offset indent
48 legal.realtek.license_ack=1
49 rsu-rtl8712fw_load="YES"
54 driver supports USB 2.0 wireless network devices based on Realtek
55 RTL8188SU, RTL8191SU and RTL8192SU chipsets.
57 The RTL8188SU is a highly integrated 802.11n adapter that combines
58 a MAC, a 1T1R capable baseband and an RF in a single chip.
59 It operates in the 2GHz spectrum only.
61 The RTL8191SU is a highly integrated multiple-in, single-out (MISO)
62 802.11n adapter that combines a MAC, a 1T2R capable baseband and an
64 It operates in the 2GHz spectrum only.
66 The RTL8192SU is a highly integrated multiple-in, multiple-out (MIMO)
67 802.11n adapter that combines a MAC, a 2T2R capable baseband and an
69 It operates in the 2GHz spectrum only.
71 These are the modes the
73 driver can operate in:
74 .Bl -tag -width "IBSS-masterXX"
78 mode, this is used when associating with an access point, through
79 which all traffic passes.
80 This mode is the default.
85 driver can be configured to use
86 Wired Equivalent Privacy (WEP) or
87 Wi-Fi Protected Access (WPA-PSK and WPA2-PSK).
88 WPA is the de facto encryption standard for wireless networks.
89 It is strongly recommended that WEP
90 not be used as the sole mechanism
91 to secure wireless communication,
92 due to serious weaknesses in it.
96 driver can be configured at runtime with
99 The driver needs at least version 1.2 of the following firmware file,
100 which is loaded when an interface is attached:
102 .Bl -tag -width Ds -offset indent -compact
103 .It Pa /boot/kernel/rsu-rtl8712fw.ko
108 driver provices support for Realtek RTL8188SU/RTL8192SU USB IEEE 802.11b/g/n
109 wireless network adapters, including:
111 .Bl -tag -width Ds -offset indent -compact
113 .It Belkin F7D1101 v1
114 .It D-Link DWA-131 A1
115 .It EDUP EP-MS150N(W)
116 .It Hercules HWGUn-54
117 .It Hercules HWNUm-300
119 .It Sitecom WL-349 v1
122 .It TRENDnet TEW-646UBH
123 .It TRENDnet TEW-648UB
124 .It TRENDnet TEW-649UB
127 Join an existing BSS network (i.e., connect to an access point):
128 .Bd -literal -offset indent
129 ifconfig wlan create wlandev rsu0 inet 192.168.0.20 \e
133 Join a specific BSS network with network name
136 .Dl "ifconfig wlan create wlandev rsu0 ssid my_net up"
138 Join a specific BSS network with 64-bit WEP encryption:
139 .Bd -literal -offset indent
140 ifconfig wlan create wlandev rsu0 ssid my_net \e
141 wepmode on wepkey 0x1234567890 weptxkey 1 up
145 .It "%s: failed load firmware of file rsu-rtl8712fw"
146 For some reason, the driver was unable to read the microcode file from the
148 The file might be missing or corrupted.
150 A frame dispatched to the hardware for transmission did not complete in time.
151 The driver will reset the hardware.
152 This should not happen.
167 driver first appeared in
174 driver was written by
175 .An Damien Bergamini Aq Mt damien@openbsd.org
177 .An Rui Paulo Aq Mt rpaulo@freebsd.org .
178 The 802.11n support was added by
179 .An Adrian Chadd Aq Mt adrian@freebsd.org .
183 driver currently does not support 802.11n transmit aggregation,
184 either A-MSDU or A-MPDU.