bwi
—
Broadcom BCM430x/4318 IEEE 802.11b/g wireless network
driver
bwi* at pci? dev ? function ?
bwi* at cardbus? function ?
The bwi
driver provides support for Broadcom
BCM430x/4318 wireless network adapters. For more information on configuring
this device, see ifconfig(8).
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.
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 |
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:
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.
The bwi
driver first appeared in NetBSD
6.0.
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.
BCM4306 and BCM4309 chips do not work properly on channel 1, 2, and 3.