DragonFly On-Line Manual Pages

BWN(4)                DragonFly Kernel Interfaces Manual                BWN(4)

NAME
     bwn -- Broadcom BCM43xx IEEE 802.11b/g wireless network driver

SYNOPSIS
     To compile this driver into the kernel, place the following lines in your
     kernel configuration file:

           device siba_bwn
           device bwn
           device wlan
           device wlan_amrr

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):

           if_bwn_load="YES"

DESCRIPTION
     The bwn driver provides support for Broadcom BCM43xx based PCI/CardBus
     network adapters.

     It supports station and monitor mode operation.  Only one virtual
     interface may be configured at any time.  For more information on
     configuring this device, see ifconfig(8).

     This driver requires firmware to be loaded before it will work.  The
     dports/sysutils/devfw-bwn port needs to be installed before ifconfig(8)
     will work.  In most cases the bwn_v4_ucode kernel module from the port
     should be used.  However, if an LP (low power) PHY is being used, the
     bwn_v4_lp_ucode module should be used.

HARDWARE
     The bwn driver supports Broadcom BCM43xx based wireless devices,
     including:

     Card                     Chip       Bus         Standard
     Apple Airport Extreme    BCM4318    PCI         b/g
     ASUS WL-138g             BCM4318    PCI         b/g
     Buffalo WLI-CB-G54S      BCM4318    CardBus     b/g
     Dell Wireless 1390       BCM4311    Mini PCI    b/g
     Dell Wireless 1470       BCM4318    Mini PCI    b/g
     Dell Truemobile 1400     BCM4309    Mini PCI    b/g
     HP Compaq 6715b          BCM4312    PCI         b/g
     HP nx6125                BCM4319    PCI         b/g
     Linksys WPC54G Ver 3     BCM4318    CardBus     b/g
     Linksys WPC54GS Ver 2    BCM4318    CardBus     b/g
     US Robotics 5411         BCM4318    CardBus     b/g

EXAMPLES
     Join an existing BSS network (i.e., connect to an access point):

           ifconfig wlan create wlandev bwn0 inet 192.168.0.20 \
               netmask 0xffffff00

     Join a specific BSS network with network name ``my_net'':

           ifconfig wlan create wlandev bwn0 ssid my_net up

     Join a specific BSS network with 64-bit WEP encryption:

           ifconfig wlan create wlandev bwn0 ssid my_net \
                   wepmode on wepkey 0x1234567890 weptxkey 1 up

LOADER TUNABLES
     Tunables can be set at the loader(8) prompt before booting the kernel or
     stored in loader.conf(5).

     hw.bwn.msi.enable
             By default, the driver will use MSI if it is supported.  This
             behavior can be turned off by setting this tunable to 0.

     hw.bwn.usedma
             This tunable enables DMA operations on the hardware.  If the
             value is 0, PIO mode would be used.  The default value is 1.

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

HISTORY
     The bwn driver first appeared in FreeBSD 8.1.

AUTHORS
     The bwn driver was written by Weongyo Jeong <weongyo@FreeBSD.org>.

CAVEATS
     Some LP PHY devices have DMA operation problems.  In that case try to use
     the PIO mode.

DragonFly 4.5                    May 26, 2016                    DragonFly 4.5