|
BWI(4) |
Kernel Interfaces Manual |
BWI(4) |
NAME
bwi — Broadcom BCM430x/4318 IEEE 802.11b/g wireless network driver
SYNOPSIS
bwi* at pci? dev ? 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-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.
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 <campbell@mumble.net>.
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.
The NetBSD driver does not yet support cardbus devices.