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
37 Alternatively, to load the driver as a module at boot time,
38 place the following lines in
40 .Bd -literal -offset indent
42 rsu-rtl8712fw_load="YES"
47 driver supports USB 2.0 wireless network devices based on Realtek
48 RTL8188SU, RTL8191SU and RTL8192SU chipsets.
50 The RTL8188SU is a highly integrated 802.11n adapter that combines
51 a MAC, a 1T1R capable baseband and an RF in a single chip.
52 It operates in the 2GHz spectrum only.
54 The RTL8191SU is a highly integrated multiple-in, single-out (MISO)
55 802.11n adapter that combines a MAC, a 1T2R capable baseband and an
57 It operates in the 2GHz spectrum only.
59 The RTL8192SU is a highly integrated multiple-in, multiple-out (MIMO)
60 802.11n adapter that combines a MAC, a 2T2R capable baseband and an
62 It operates in the 2GHz spectrum only.
64 These are the modes the
66 driver can operate in:
67 .Bl -tag -width "IBSS-masterXX"
71 mode, this is used when associating with an access point, through
72 which all traffic passes.
73 This mode is the default.
75 In this mode the driver is able to receive packets without
76 associating with an access point.
77 This disables the internal receive filter and enables the card to
78 capture packets from networks which it wouldn't normally have access to,
79 or to scan for access points.
84 driver can be configured to use
85 Wired Equivalent Privacy (WEP) or
86 Wi-Fi Protected Access (WPA-PSK and WPA2-PSK).
87 WPA is the de facto encryption standard for wireless networks.
88 It is strongly recommended that WEP
89 not be used as the sole mechanism
90 to secure wireless communication,
91 due to serious weaknesses in it.
95 driver can be configured at runtime with
98 .Bl -tag -width ".Pa /usr/share/doc/legal/realtek.LICENSE" -compact
99 .It Pa /usr/share/doc/legal/realtek.LICENSE
104 The driver needs at least version 1.2 of the following firmware file,
105 which is loaded when an interface is attached:
107 .Bl -tag -width Ds -offset indent -compact
108 .It Pa /boot/kernel/rsu-rtl8712fw.ko
113 driver provices support for Realtek RTL8188SU/RTL8192SU USB IEEE 802.11b/g/n
114 wireless network adapters, including:
116 .Bl -tag -width Ds -offset indent -compact
118 .It Belkin F7D1101 v1
119 .It D-Link DWA-131 A1
120 .It EDUP EP-MS150N(W)
121 .It Edimax EW-7622UMN
122 .It Hercules HWGUn-54
123 .It Hercules HWNUm-300
125 .It Sitecom WL-349 v1
128 .It TRENDnet TEW-646UBH
129 .It TRENDnet TEW-648UB
130 .It TRENDnet TEW-649UB
133 Join an existing BSS network (i.e., connect to an access point):
134 .Bd -literal -offset indent
135 ifconfig wlan create wlandev rsu0 inet 192.168.0.20 \e
139 Join a specific BSS network with network name
142 .Dl "ifconfig wlan create wlandev rsu0 ssid my_net up"
144 Join a specific BSS network with 64-bit WEP encryption:
145 .Bd -literal -offset indent
146 ifconfig wlan create wlandev rsu0 ssid my_net \e
147 wepmode on wepkey 0x1234567890 weptxkey 1 up
151 .It "%s: failed load firmware of file rsu-rtl8712fw"
152 For some reason, the driver was unable to read the microcode file from the
154 The file might be missing or corrupted.
156 A frame dispatched to the hardware for transmission did not complete in time.
157 The driver will reset the hardware.
158 This should not happen.
173 driver first appeared in
180 driver was written by
181 .An Damien Bergamini Aq Mt damien@openbsd.org
183 .An Rui Paulo Aq Mt rpaulo@freebsd.org .
184 The 802.11n support was added by
185 .An Adrian Chadd Aq Mt adrian@freebsd.org .
189 driver currently does not support 802.11n transmit aggregation,
190 either A-MSDU or A-MPDU.
194 driver does not capture management frames in non-monitor modes;
195 without this limitation some firmware functions (e.g., 'join bss')
196 will not work properly.