NAME

bwi — Broadcom BCM430x/4318 IEEE 802.11b/g wireless network driver

SYNOPSIS

bwi* at pci? dev ? function ?
bwi* at cardbus? function ?

DESCRIPTION

The bwi driver provides support for Broadcom BCM430x/4318 wireless network adapters. For more information on configuring this device, see ifconfig(8).

HARDWARE

The following cards are among those supported by the bwi driver:

Card	Chip	Bus	Standard
Buffalo WLI-CB-G54	BCM4306	CardBus	b/g
Buffalo WLI3-CB-G54L	BCM4318	CardBus	b/g
Buffalo WLI-PCI-G54S	BCM4306	PCI	b/g
Dell Wireless 1370	BCM4318	Mini PCI	b/g
Dell Wireless 1470	BCM4318	Mini PCI	b/g
Dell Truemobile 1400	BCM4309	Mini PCI	b/g
Dell Latitude D505	BCM4306	PCI	b/g
Apple AirPort Extreme			b/g

FILES

The firmware for the adapter is not shipped with NetBSD and must be obtained separately. An archive with firmware files that are known to work can be found at:

http://leaf.dragonflybsd.org/~sephe/bwi/v3.tbz

The firmware files conventionally reside in /libdata/firmware/bwi and will be loaded when the interface is brought up. Note: the v3 subdirectory in the above firmware archive should exist in the firmware folder. The full list of paths checked for firmware can be found in the hw.firmware.path sysctl(3) node.

SEE ALSO

arp(4), cardbus(4), ifmedia(4), pci(4), ifconfig(8), sysctl(8), wiconfig(8), wpa_supplicant(8)

HISTORY

The bwi driver first appeared in NetBSD 6.0.

AUTHORS

The bwi driver was written by Sepherosa Ziehau for Dragonfly BSD. It was ported to NetBSD by Taylor R. Campbell <riastradh@NetBSD.org>.

The hardware specification was reverse engineered by the people at http://bcm-specs.sipsolutions.net. Thanks go also to johill and mb on the #bcm-specs channel.

BUGS

BCM4306 and BCM4309 chips do not work properly on channel 1, 2, and 3.