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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_amrr

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

             if_ural_load="YES"


DESCRIPTION
       The ural 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 up

       Join 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).

Debian                                           April 13, 2008                                          URAL(4)