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BWI(4) BSD Kernel Interfaces Manual BWI(4)

NAME

bwi — Broadcom BCM43xx IEEE 802.11b/g wireless network driver

SYNOPSIS

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

device bwi
device wlan
device wlan_amrr
device firmware

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

if_bwi_load="YES"

DESCRIPTION

The bwi driver provides support for Broadcom BCM43xx based PCI/CardBus network adapters.

It supports station and monitor mode operation. Only one virtual interface may be configured at any time. For more information on configuring this device, see ifconfig(8).

This driver requires firmware to be loaded before it will work. The ports/net/bwi-firmware-kmod port needs to be installed before ifconfig(8) will work.

HARDWARE

The bwi driver supports Broadcom BCM43xx based wireless devices, including:

Card Chip Bus Standard
Apple Airport Extreme BCM4306 PCI b/g
Apple Airport Extreme BCM4318 PCI b/g
ASUS WL-138g BCM4318 PCI b/g
Buffalo WLI-CB-G54S BCM4318 CardBus b/g
Buffalo WLI-PCI-G54S BCM4306 PCI b/g
Compaq R4035 onboard BCM4306 PCI b/g
Dell Wireless 1470 BCM4318 Mini PCI b/g
Dell Truemobile 1400 BCM4309 Mini PCI b/g
HP nx6125 BCM4319 PCI b/g
Linksys WPC54G Ver 3 BCM4318 CardBus b/g
Linksys WPC54GS Ver 2 BCM4318 CardBus b/g
TRENDnet TEW-401PCplus BCM4306 CardBus b/g
US Robotics 5411 BCM4318 CardBus b/g

EXAMPLES

Join an existing BSS network (i.e., connect to an access point):

ifconfig wlan create wlandev bwi0 inet 192.168.0.20 \
netmask 0xffffff00

Join a specific BSS network with network name ‘‘my_net’’:

ifconfig wlan create wlandev bwi0 ssid my_net up

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

ifconfig wlan create wlandev bwi0 ssid my_net \
wepmode on wepkey 0x1234567890 weptxkey 1 up

SEE ALSO

arp(4), cardbus(4), intro(4), pci(4), wlan(4), wlan_amrr(4), ifconfig(8), wpa_supplicant(8)

HISTORY

The bwi driver first appeared in FreeBSD 8.0.

AUTHORS

The bwi driver was written for DragonFly BSD by Sepherosa Ziehau and subsequently ported to FreeBSD.

BUGS

Some card based on the BCM4306 and BCM4309 chips do not work properly on channel 1, 2 and 3.

BSD May 16, 2009 BSD

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