NAME
ural —
Ralink Technology RT2500USB IEEE 802.11
driver
SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file:
device ehci
device uhci
device ohci
device usb
device ural
device wlan
device wlan_amrrAlternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_ural_load="YES"
DESCRIPTION
Theural driver supports USB 2.0 wireless adapters based
on the RT2500USB chipset.
The RT2500USB chipset consists of two integrated chips, a RT2570 MAC/BBP and a radio transceiver (the model of which depends on the card revision).
The RT2522, RT2523, RT2524, RT2525, RT2525e and RT2526 radio transceivers operate in the 2.4GHz band (802.11b/g) whereas the RT5222 is a dual-band radio transceiver that can operate in the 2.4GHz and 5.2GHz bands (802.11a).
ural supports
station, adhoc,
hostap, and monitor mode
operation. Only one virtual interface may be configured at any time. For
more information on configuring this device, see
ifconfig(8).
HARDWARE
The ural driver supports USB 2.0 wireless
adapters based on the Ralink Technology RT2500USB chipset, including:
| Card | Bus |
| AMIT WL532U | USB |
| ASUS WL-167g | USB |
| Belkin F5D7050 v2000 | USB |
| Buffalo WLI-U2-KG54-AI | USB |
| CNet CWD-854 | USB |
| Compex WLU54G 2A1100 | USB |
| Conceptronic C54RU | USB |
| D-Link DWL-G122 b1 | USB |
| Dynalink WLG25USB | USB |
| E-Tech WGUS02 | USB |
| Gigabyte GN-WBKG | USB |
| Hercules HWGUSB2-54 | USB |
| KCORP LifeStyle KLS-685 | USB |
| Linksys WUSB54G v4 | USB |
| Linksys WUSB54GP v4 | USB |
| MSI MS-6861 | USB |
| MSI MS-6865 | USB |
| MSI MS-6869 | USB |
| NovaTech NV-902 | USB |
| OvisLink Evo-W54USB | USB |
| SerComm UB801R | USB |
| SparkLAN WL-685R | USB |
| Surecom EP-9001-g | USB |
| Sweex LC100060 | USB |
| Tonze UW-6200C | USB |
| Zinwell ZWX-G261 | USB |
| Zonet ZEW2500P | USB |
An up to date list can be found at http://ralink.rapla.net/.
EXAMPLES
Join an existing BSS network (i.e., connect to an access point):
ifconfig wlan create wlandev ural0 inet 192.168.0.20 \
netmask 0xffffff00
Join a specific BSS network with network name
“my_net”:
ifconfig wlan create wlandev ural0
ssid my_net upJoin a specific BSS network with 64-bit WEP encryption:
ifconfig wlan create wlandev ural0 ssid my_net \ wepmode on wepkey 0x1234567890 weptxkey 1 up
Join a specific BSS network with 128-bit WEP encryption:
ifconfig wlan create wlandev ural0 wlanmode adhoc ssid my_net \
wepmode on wepkey 0x01020304050607080910111213 weptxkey 1
DIAGNOSTICS
- ural%d: device timeout
- The driver will reset the hardware. This should not happen.
SEE ALSO
intro(4), netintro(4), usb(4), wlan(4), wlan_amrr(4), wlan_ccmp(4), wlan_tkip(4), wlan_wep(4), wlan_xauth(4), hostapd(8), ifconfig(8), wpa_supplicant(8)
Ralink Technology, http://www.ralinktech.com/.
HISTORY
The ural driver first appeared in
OpenBSD 3.7.
AUTHORS
The original ural driver was written by
Damien Bergamini
<damien.bergamini@free.fr>.
BUGS
Host AP mode doesn't support client power save. Clients using power save mode will experience packet loss (disabling power saving on the client will fix this).