1 .\" Copyright (c) 2009 Christian Brueffer
2 .\" All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
8 .\" notice, this list of conditions and the following disclaimer.
9 .\" 2. Redistributions in binary form must reproduce the above copyright
10 .\" notice, this list of conditions and the following disclaimer in the
11 .\" documentation and/or other materials provided with the distribution.
13 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 .\" $FreeBSD: head/share/man/man4/bwn.4 233992 2012-04-07 09:05:30Z joel $
32 .Nd Broadcom BCM43xx IEEE 802.11b/g wireless network driver
34 To compile this driver into the kernel,
35 place the following lines in your
36 kernel configuration file:
37 .Bd -ragged -offset indent
41 .Cd "device wlan_amrr"
44 Alternatively, to load the driver as a
45 module at boot time, place the following line in
47 .Bd -literal -offset indent
53 driver provides support for Broadcom BCM43xx based
54 PCI/CardBus network adapters.
61 Only one virtual interface may be configured at any time.
62 For more information on configuring this device, see
65 This driver requires firmware to be loaded before it will work.
67 .Pa dports/net/bwn-firmware-kmod
68 port needs to be installed before
71 In most cases you need to use the bwn_v4_ucode module but if you are a
72 LP (low power) PHY user please use the bwn_v4_lp_ucode module.
76 driver supports Broadcom BCM43xx based wireless devices, including:
77 .Bl -column "Apple Airport Extreme" "BCM4306" "Mini PCI" "a/b/g"
78 .It Em "Card" Ta Em "Chip" Ta Em "Bus" Ta Em "Standard"
79 .It "Apple Airport Extreme BCM4318 PCI b/g"
80 .It "ASUS WL-138g BCM4318 PCI b/g"
81 .It "Buffalo WLI-CB-G54S BCM4318 CardBus b/g"
82 .It "Dell Wireless 1390 BCM4311 Mini PCI b/g"
83 .It "Dell Wireless 1470 BCM4318 Mini PCI b/g"
84 .It "Dell Truemobile 1400 BCM4309 Mini PCI b/g"
85 .It "HP Compaq 6715b BCM4312 PCI b/g"
86 .It "HP nx6125 BCM4319 PCI b/g"
87 .It "Linksys WPC54G Ver 3 BCM4318 CardBus b/g"
88 .It "Linksys WPC54GS Ver 2 BCM4318 CardBus b/g"
89 .It "US Robotics 5411 BCM4318 CardBus b/g"
92 .\"Users of older Broadcom chipsets (BCM4301, BCM4303 and BCM4306 rev 2)
95 .\"because the v4 version of the firmware does not support these chips.
96 .\"The newer firmware is too big to fit into these old chips.
98 Join an existing BSS network (i.e., connect to an access point):
99 .Bd -literal -offset indent
100 ifconfig wlan create wlandev bwn0 inet 192.168.0.20 \e
104 Join a specific BSS network with network name
107 .Dl "ifconfig wlan create wlandev bwn0 ssid my_net up"
109 Join a specific BSS network with 64-bit WEP encryption:
110 .Bd -literal -offset indent
111 ifconfig wlan create wlandev bwn0 ssid my_net \e
112 wepmode on wepkey 0x1234567890 weptxkey 1 up
115 Tunables can be set at the
117 prompt before booting the kernel or stored in
119 .Bl -tag -width indent
120 .It Va hw.bwn.msi.enable
121 By default, the driver will use MSI if it is supported.
122 This behavior can be turned off by setting this tunable to 0.
124 This tunable enables DMA operations on the hardware.
125 If the value is 0, PIO mode would be used.
126 The default value is 1.
142 driver first appeared in
148 driver was written by
150 .Aq weongyo@FreeBSD.org .
152 .\"Some card based on the BCM4306 and BCM4309 chips do not work properly
153 .\"on channel 1, 2 and 3.
155 Some LP PHY devices have DMA operation problems.
156 In that case try to use the PIO mode.