Note that this document is outdated and no longer describes my current setup. This card is now supported in the Linux kernel since 2.6.something.
This document roughly describes the steps I used to get my Linksys WPC54G CardBus 802.11g wireless network adapter to work under Debian GNU/Linux. This is really a one-time document that I do not really intend on keeping up-to-date (though I may occasionally update it). The steps I used here work for me but your milage may vary. You can mail be about this document, but changes are that I don't have an answer for any problems you run into.
This page is probably outdated since it describes a setup that was done some time ago. More recent and up-to-date information can be found here: http://ndiswrapper.sourceforge.net/joomla/index.php?/component/option,com_openwiki/Itemid,33/id,installation/, here: http://ndiswrapper.sourceforge.net/joomla/index.php?/component/option,com_openwiki/Itemid,33/id,list_g-l/ and here: http://ndiswrapper.sourceforge.net/joomla/index.php?/component/option,com_openwiki/Itemid,33/id,faq/.
I run Debian GNU/Linux testing (as of 2004-05-22) on a Dell Inspiron 4150. I bought a Linksys WPC54G card, the relevant output of lspci -v is:
0000:07:00.0 Network controller: Broadcom Corporation BCM94306 802.11g (rev 03) Subsystem: Linksys WPC54G Flags: bus master, fast devsel, latency 64, IRQ 11 Memory at 11000000 (32-bit, non-prefetchable) [size=8K] Capabilities:  Power Management version 2
and lspci -vn:
0000:07:00.0 Class 0280: 14e4:4320 (rev 03) Subsystem: 1737:4320 Flags: bus master, fast devsel, latency 64, IRQ 11 Memory at 11000000 (32-bit, non-prefetchable) [size=8K] Capabilities:  Power Management version 2
I used a Linksys WAP54G access point with a pretty standard configuration.
The ndiswrapper is a Linux kernel module that acts as a wrapper for loading NDIS (Microsoft Windows network) drivers. This is obviously not the nicest solution but the one I got working without too many problems. If anyone knowns of a native driver that works, let me know.
apt-get install ndiswrapper-utils ndiswrapper-source
cd /usr/src tar -xvzf ndiswrapper-source.tar.gz cd modules/ndiswrapper
(optionally change KSRC to point to the correct location of your kernel sources)
debian/rules binary-modules KSRC=/lib/modules/`uname -r`/build
dpkg -i ../ndiswrapper-modules-*.deb
ndiswrapper -i lsbcmnds.inf
modprobe ndiswrapper echo ndiswrapper >> /etc/modules
Now the wireless interface wlan0 should be available. You can check this with iwconfig from the wireless-tools package. To scan for access points do:
iwlist wlan0 scan
To configure the interface use:
iwconfig wlan0 channel 11 essid test mode Managed
changing the channel and essid to the values from the output of iwlist.
You can have your wireless card scan for accesspoints and configure the network interface automatically. Install some packages:
apt-get install waproamd ifplugd
Edit /etc/default/ifplugd and set HOTPLUG_INTERFACES to "all". Edit /etc/default/waproamd and set HOTPLUG_INTERFACES to "all". Edit /etc/network/interfaces and add:
iface wlan0 inet dhcp
Now restart the neccesary services:
/etc/init.d/ifplugd restart /etc/init.d/waproamd restart
There may be some missing components here, maybe hotplug, maybe some others that I have set up earlier, but these were the steps that I needed.
This is just a list of issues that I still have with this setup. Note that there may be more issues because I have not yet tested the card with WEP keys or more exotic configurations.
sed -i.bak 's/RadioState|1/RadioState|0/' /etc/ndiswrapper/lsbcmnds/14E4*.conf