Depuis peu le projet Broadcom BCM43xx Linux Driver permet d’utiliser cette carte sous Linux. Et ça fonctionne!

Le site du projet décrit bien l’installation, vous pouvez aussi vous aider du forum gentoo, notamment ce thread.

Pour info, voici la séquence des commandes que j’ai utilisé sous Gentoo PPC:

echo "net-wireless/ieee80211softmac ~ppc" >> /etc/portage/package.keywords 
echo "net-wireless/bcm43xx ~ppc" >> /etc/portage/package.keywords
emerge --pretend bcm43xx
emerge bcm43xx
cd /usr/src/
wget ftp://ftp.berlios.de/pub/bcm43xx/snapshots/fwcutter/bcm43xx-fwcutter-20060125.tar.bz2
tar xvjf bcm43xx-fwcutter-20060125.tar.bz2
cd bcm43xx-fwcutter-20060125
make
mount /mnt/macosx/
cp /mnt/macosx/System/Library/Extensions/AppleAirPort2.kext/Contents/MacOS/AppleAirPort2 .
./fwcutter AppleAirPort2
make installfw
modprobe bcm43xx
iwconfig
ifconfig eth1 up
iwlist eth1 scan
iwconfig eth1 channel 9
iwconfig eth1 rate 54M
iwconfig eth1 essid "Brest-Wireless"
dhcpcd eth1

Log de chargement du module:

bcm43xx driver 0.0.1
bcm43xx: Chip ID 0x4306, rev 0x3
bcm43xx: Number of cores: 5
bcm43xx: Core 0: ID 0x800, rev 0x4, vendor 0x4243, enabled
bcm43xx: Core 1: ID 0x812, rev 0x5, vendor 0x4243, disabled
bcm43xx: Core 2: ID 0x80d, rev 0x2, vendor 0x4243, enabled
bcm43xx: Core 3: ID 0x807, rev 0x2, vendor 0x4243, disabled
bcm43xx: Core 4: ID 0x804, rev 0x9, vendor 0x4243, enabled
bcm43xx: PHY connected
bcm43xx: Detected PHY: Version: 2, Type 2, Revision 2
bcm43xx: Detected Radio:  ID: 2205017f (Manuf: 17f Ver: 2050 Rev: 2)
bcm43xx: Radio turned off
bcm43xx: Radio turned off

iwconfig:

eth1      IEEE 802.11b/g  ESSID:"Brest-Wireless"  Nickname:"Broadcom 4306"
          Mode:Managed  Frequency=2.437 GHz  Access Point: 00:60:B3:1C:xx:xx
          Bit Rate:54 Mb/s   Tx-Power=2346 dBm   
          RTS thr:off   Fragment thr:off
          Encryption key:off

Exemple d’utilisation:

modprobe bcm43xx
ifconfig eth1 up
iwconfig eth1 mode managed channel 6 essid "Brest-Wireless" rate 54M
dhcpcd eth1

Airport Extreme

MacOSX

Linux