NAME
rum —
Ralink Technology USB IEEE 802.11a/b/g
wireless network device
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 rum
device wlan
device wlan_amrrAlternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_rum_load="YES"
DESCRIPTION
Therum driver supports USB 2.0 and PCI Express Mini
Card wireless adapters based on the Ralink RT2501USB and RT2601USB chipsets.
Ralink PCI Express Mini Card adapters show up as normal USB 2.0
devices and are thus handled by the rum driver.
The RT2501USB chipset is the second generation of 802.11a/b/g adapters from Ralink. It consists of two integrated chips, an RT2571W MAC/BBP and an RT2528 or RT5226 radio transceiver.
The RT2601USB chipset consists of two integrated chips, an RT2671 MAC/BBP and an RT2527 or RT5225 radio transceiver. This chipset uses the MIMO (multiple-input multiple-output) technology with multiple antennas to extend the operating range of the adapter and to achieve higher throughput.
rum 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 rum driver supports USB 2.0 wireless
adapters based on the Ralink RT2501USB and RT2601USB chipsets,
including:
| Card | Bus |
| 3Com Aolynk WUB320g | USB |
| Abocom WUG2700 Ta | USB |
| Airlink101 AWLL5025 | USB |
| ASUS WL-167g ver 2 | USB |
| Belkin F5D7050 ver 3 | USB |
| Belkin F5D9050 ver 3 | USB |
| Buffalo WLI-U2-SG54HP | USB |
| Buffalo WLI-U2-SG54HG | USB |
| Buffalo WLI-U2-G54HP | USB |
| Buffalo WLI-UC-G | USB |
| CNet CWD-854 ver F | USB |
| Conceptronic C54RU ver 2 | USB |
| Corega CG-WLUSB2GO | USB |
| D-Link DWA-110 | USB |
| D-Link DWA-111 | USB |
| D-Link DWL-G122 rev C1 | USB |
| D-Link WUA-1340 | USB |
| Digitus DN-7003GR | USB |
| Edimax EW-7318USG | USB |
| Gigabyte GN-WB01GS | USB |
| Gigabyte GN-WI05GS | USB |
| Hawking HWUG1 | USB |
| Hawking HWU54DM | USB |
| Hercules HWGUSB2-54-LB | USB |
| Hercules HWGUSB2-54V2-AP | USB |
| LevelOne WNC-0301USB v3 | USB |
| Linksys WUSB54G rev C | USB |
| Linksys WUSB54GR | USB |
| Planex GW-US54HP | USB |
| Planex GW-US54Mini2 | USB |
| Planex GW-USMM | USB |
| Senao NUB-3701 | USB |
| Sitecom WL-113 ver 2 | USB |
| Sitecom WL-172 | USB |
| Sweex LW053 | USB |
| TP-LINK TL-WN321G | USB |
EXAMPLES
Join an existing BSS network (i.e., connect to an access point):
ifconfig wlan create wlandev rum0 inet 192.168.0.20 \
netmask 0xffffff00
Join a specific BSS network with network name
“my_net”:
ifconfig wlan create wlandev rum0
ssid my_net upJoin a specific BSS network with 64-bit WEP encryption:
ifconfig wlan create wlandev rum0 ssid my_net \ wepmode on wepkey 0x1234567890 weptxkey 1 up
Join a specific BSS network with 128-bit WEP encryption:
ifconfig wlan create wlandev rum0 wlanmode adhoc ssid my_net \
wepmode on wepkey 0x01020304050607080910111213 weptxkey 1
DIAGNOSTICS
- rum%d: could not load 8051 microcode
- An error occurred while attempting to upload the microcode to the onboard 8051 microcontroller unit.
- rum%d: device timeout
- The driver will reset the hardware. This should not happen.
SEE ALSO
ifmedia(4), 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 rum driver first appeared in
OpenBSD 4.0.
AUTHORS
The original rum driver was written by
Niall O'Higgins
<niallo@openbsd.org>
and Damien Bergamini
<damien@openbsd.org>.
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).