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_amrr
Alternatively, to load the driver as a module at boot time, place the following
line in
loader.conf(5):
DESCRIPTION¶
The
rum
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 up
Join 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. 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),
ifconfig(8),
hostapd(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).