BWI(4) FreeBSD Kernel Interfaces Manual BWI(4)
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).
MIB Variables
The following per-interface variables are implemented in the hw.bwiX
branch of the sysctl(3) MIB.
debug Debug flags.
dwell_time Channel dwell time during scan (msec).
fw_version Firmware version.
led_idle Number of ticks before LED enters idle state.
led_blink Allow LED to blink.
txpwr_calib Enable software TX power calibration.
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 <
[email protected]>.
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.
FreeBSD 14.1-RELEASE-p8 April 25, 2012 FreeBSD 14.1-RELEASE-p8