DragonFly On-Line Manual Pages

BWI(4)		      DragonFly Kernel Interfaces Manual		BWI(4)

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

SYNOPSIS
     To load the driver as a module at boot time, place the following line in
     /boot/loader.conf:

	   if_bwi_load="YES"

DESCRIPTION
     The bwi driver provides support for Broadcom BCM430x/4318 wireless net-
     work 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
	   Linksys WPC54Gv3	   BCM4318    CardBus	 b/g
	   Linksys WPC54GSv2	   BCM4318    CardBus	 b/g
	   Buffalo WLI-CB-G54S	   BCM4318    CardBus	 b/g
	   Buffalo WLI-PCI-G54S    BCM4306    PCI	 b/g
	   Dell Wireless 1470	   BCM4318    Mini PCI	 b/g
	   Dell Truemobile 1400    BCM4309    Mini PCI	 b/g

FILES
     The firmware for the adapter is not shipped with DragonFly 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 have to reside in /etc/firmware/bwi and will be loaded
     when the interface is brought up.

EXAMPLES
     Refer to the EXAMPLES section of wlan(4).

SEE ALSO
     arp(4), cardbus(4), ifmedia(4), pci(4), wlan(4), wlan_ratectl(4),
     ifconfig(8), wpa_supplicant(8)

HISTORY
     The bwi driver first appeared in DragonFly 1.11.

AUTHORS
     The bwi driver was written by Sepherosa Ziehau.

     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.

DragonFly 2.5			 July 26, 2008			 DragonFly 2.5