plutux ~ # wget http://puma.ttc.cz/~jaha2x/openwrt/modules/drivers/net/wl/wl_apsta/wl_apsta.o
--13:56:19--  http://puma.ttc.cz/~jaha2x/openwrt/modules/drivers/net/wl/wl_apsta/wl_apsta.o
           => `wl_apsta.o'
Resolving puma.ttc.cz... 82.99.175.158
Connecting to puma.ttc.cz|82.99.175.158|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 360,564 (352K) [application/x-object]

100%[========================================================================>] 360,564       56.45K/s    ETA 00:00

13:56:27 (52.66 KB/s) - `wl_apsta.o' saved [360564/360564]

plutux ~ #  bcm43xx-fwcutter -w /lib/firmware wl_apsta.o
bcm43xx-fwcutter can cut the firmware out of wl_apsta.o

  filename :  wl_apsta.o
  version  :  3.31.16.0
  MD5      :  dfce35a8b5cb6e53e1ab75342c7e7194

extracting bcm43xx_microcode2.fw ...
/lib/firmware/bcm43xx_microcode2.fw: No such file or directory
plutux ~ #