I am running Mageia 2 on a Macbook Pro 8,2.  This has the following broadcom wireless chipset: 

03:00.0 Network controller: Broadcom Corporation BCM4331 802.11a/b/g/n (rev 02)

Full support for this chipset was added to the b43 driver in the 3.3 kernel.  It requires installing b43-fwcutter and extracting the newest firmware.  I did extract the latest firmware and the b43 driver works fine and loads the ucode29_mimo.fw firmware.  The b43 driver works fine. 

However, after suspend to RAM and wakeup, the wireless fails to reconnect. 

One workaround I have found is that if I unload the b43 module resume, Mageia 2 then reloads it again immediately (weird, don't understand why that's the case?) and now I can connect to my wireless access points and get an IP address.  So, the workaround is: 

Wake up from sleep
Run "modprobe -r b43"
Then netapplet reconnects to my wireless

The same thing happens with all Wireless APs I have used, so I don't think the problem is related to any specific AP. 

As a more convenient workaround so that b43 reloads after sleep, I created the following file /etc/pm/sleep.d/99sleep-script

#!/bin/sh
case "$1" in
     suspend|freeze)
     ;;
     
     resume|thaw)
          /sbin/modprobe -r b43
     ;;
     
     *)
     ;;
esac

and now b43 reloads automatically after sleep.  

I can also just create a file /etc/pm/config.d/modules with the following content: 

      SUSPEND_MODULES="b43"

and that works too without the 99sleep-script. But, two things are wrong here: 

1.  I should not HAVE to reload b43 after waking from sleep?
2.  Why does "/sbin/modprobe -r b43"  BOTH unload the b43 driver and then reload it?  I would think unloading it should unload it and not load it again automatically.