firmware installer for the b43 driver

 This package downloads and installs the firmware needed by the b43
 kernel driver for some Broadcom 43xx wireless network cards.
 .
 Supported chipsets:
  * BCM4306/3 (chip revision 3 only);
  * BCM4311 (NOT PCI Id 14e4:4313);
  * BCM4312;
  * BCM43131;
  * BCM4318;
  * BCM4321 (only partial support, not all versions tested);
  * BCM43217;
  * BCM4322 (only partial support for some versions, not all versions tested);
  * BCM43222 (not all versions tested);
  * BCM43224 (not all versions tested);
  * BCM43225;
  * BCM43227;
  * BCM43228;
  * BCM4331;
  * BCM47xx (detection not reliable, may not support all versions).