HowTo: bcm4306 ndiswrapper installation guide for Fedora
 

I did this on Fedora 11 64bit with bcm4306 wireless chipset.

Note: This requires internet access. I was able to accomplish this by bridging the wireless and lan on my laptop but that is beyond this guide.

A. Preparation

1. Open up the terminal (Applications – System – Terminal) and make the following directories:
   
   Code:

   ---

   mkdir /bcm4306

   ---

2. Setup RPM Fusion. RPM Fusion configuration
3. Blacklist the bcm43xx, b43 wireless driver:
   Note: The su -c command will ask for your root password and not your user password.
   
   Code:

   ---

   su -c nano /etc/modprobe.d/blacklist.conf

   ---

   Make sure both
   Code:

   ---

   blacklist bcm43xx
blacklist b43

   ---

   are in this file. If you don't have nano installed you can use gedit or vi instead.
4. Install ndiswrapper, cabextract, and updates
   
   Code:

   ---

   su -c yum install akmod-ndiswrapper ndiswrapper cabextract
su -c yum update

   ---

5. Restart computer if "yum update" found a kernel update.

B. Download and Install Wireless Driver

1. Download wireless driver
   
   Code:

   ---

   cd /bcm4306
wget ftp://ftp.hp.com/pub/softpaq/sp33001-33500/sp33008.exe

   ---

2. Extract wireless driver
   
   Code:

   ---

   cabextract sp33008.exe

   ---

3. Become root and install driver
   
   Code:

   ---

   su --login
cd /bcm4306
ndiswrapper -i bcmwl5.inf

   ---

4. Copy the .conf file.
   
   Code:

   ---

   cp /etc/ndiswrapper/bcmwl5/14E4:4324.5.conf /etc/ndiswrapper/bcmwl5/.conf

   ---

   Note: This one didn't make much sense to me but I did it it. Not sure if its necessary.
5. Verify if drivers installed properly
   
   Code:

   ---

   ndiswrapper -l

   ---

   Should give something similar to this.
   
   Code:

   ---

   bcmwl5 : driver installed

   ---

6. Run this if the above command worked.
   
   Code:

   ---

   modprobe ndiswrapper

   ---

7. To verify the module loaded run
   
   Code:

   ---

   dmesg | grep wlan

   ---

   If you get something like the following it worked
   
   Code:

   ---

   wlan0: ethernet device 00:0c:41:14:24:6b using NDIS driver: bcmwl5, version: 0x4281300, NDIS version: 0x501, vendor: 'NDIS Network Adapter', 14E4:4320.5.conf
wlan0: encryption modes supported: WEP; TKIP with WPA, WPA2, WPA2PSK; AES/CCMP with WPA, WPA2, WPA2PSK

   ---

8. Next we add the alias directive to the modprobe.d directory
   
   Code:

   ---

   ndiswrapper -ma
echo "alias wlan0 ndiswrapper" >> /etc/modprobe.d/bcm4306.conf

   ---

If all went well your wireless card will appear in Network Manager. If it doesn't run the command
If wlan shows up with available networks your drivers are working correctly and your problem lies elsewhere. Try restarting.

Hope this helps.

I built this guide mostly off of the following sources:
http://fedoramobile.org/fc-wireless/ndis-yum-livna
http://ubuntuforums.org/showthread.php?t=340689