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Man Pages


Manual Reference Pages  -  RSU (4)

NAME

rsu - Realtek RTL8188SU/RTL8192SU USB IEEE 802.11b/g/n wireless network device

CONTENTS

Synopsis
Description
Files
Hardware
Examples
Diagnostics
See Also
History
Authors
Caveats

SYNOPSIS

To compile this driver into the kernel, place the following lines in your kernel configuration file:


.Cd device ehci
.Cd device uhci
.Cd device ohci
.Cd device usb
.Cd device rsu
.Cd device wlan

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

if_rsu_load="YES"

After you have read the license in /usr/share/doc/legal/realtek you will want to add the following lines to loader.conf(5):

legal.realtek.license_ack=1
rsu-rtl8712fw_load="YES"

DESCRIPTION

The rsu driver supports USB 2.0 wireless network devices based on Realtek RTL8188SU, RTL8191SU and RTL8192SU chipsets.

The RTL8188SU is a highly integrated 802.11n adapter that combines a MAC, a 1T1R capable baseband and an RF in a single chip. It operates in the 2GHz spectrum only.

The RTL8191SU is a highly integrated multiple-in, single-out (MISO) 802.11n adapter that combines a MAC, a 1T2R capable baseband and an RF in a single chip. It operates in the 2GHz spectrum only.

The RTL8192SU is a highly integrated multiple-in, multiple-out (MIMO) 802.11n adapter that combines a MAC, a 2T2R capable baseband and an RF in a single chip. It operates in the 2GHz spectrum only.

These are the modes the rsu driver can operate in:
BSS mode Also known as infrastructure mode, this is used when associating with an access point, through which all traffic passes. This mode is the default.

The rsu driver can be configured to use Wired Equivalent Privacy (WEP) or Wi-Fi Protected Access (WPA-PSK and WPA2-PSK). WPA is the de facto encryption standard for wireless networks. It is strongly recommended that WEP not be used as the sole mechanism to secure wireless communication, due to serious weaknesses in it.

The rsu driver can be configured at runtime with ifconfig(8).

FILES

The driver needs at least version 1.2 of the following firmware file, which is loaded when an interface is attached:

/boot/kernel/rsu-rtl8712fw.ko
 

HARDWARE

The rsu driver provices support for Realtek RTL8188SU/RTL8192SU USB IEEE 802.11b/g/n wireless network adapters, including:

ASUS USB-N10
Belkin F7D1101 v1
D-Link DWA-131 A1
EDUP EP-MS150N(W)
Hercules HWGUn-54
Hercules HWNUm-300
Planex GW-USNano
Sitecom WL-349 v1
Sitecom WL-353
Sweex LW154
TRENDnet TEW-648UB
TRENDnet TEW-649UB
 

EXAMPLES

Join an existing BSS network (i.e., connect to an access point):
ifconfig wlan create wlandev rsu0 inet 192.168.0.20 \
    netmask 0xffffff00

Join a specific BSS network with network name "my_net":

    ifconfig wlan create wlandev rsu0 ssid my_net up

Join a specific BSS network with 64-bit WEP encryption:

ifconfig wlan create wlandev rsu0 ssid my_net \
        wepmode on wepkey 0x1234567890 weptxkey 1 up

DIAGNOSTICS

%s: failed load firmware of file rsu-rtl8712fw For some reason, the driver was unable to read the microcode file from the filesystem. The file might be missing or corrupted.
device timeout A frame dispatched to the hardware for transmission did not complete in time. The driver will reset the hardware. This should not happen.

SEE ALSO

intro(1), usb(4), netintro(4), rsufw(4), wlan(4), arp(8), hostapd(8), ifconfig(8), wpa_supplicant(8)

HISTORY

The rsu driver first appeared in
.Ox 4.9 and
.Fx 10.0 .

AUTHORS


.An -nosplit The rsu driver was written by
.An Damien Bergamini Aq damien@openbsd.org and ported by
.An Rui Paulo Aq rpaulo@freebsd.org .

CAVEATS

The rsu driver does not support any of the 802.11n capabilities offered by the adapters.
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