You need to be root to do this - sudo won't do!
<pre>
# mount -t debugfs none /sys/kernel/debug
# cd echo "0xa58c 0x40865" > /sys/kernel/debug/lbs_wireless/wlan0/registers/ # echo "0xa58c 0x40865" > wrmac # echo "0xa5a0 0xd24d" > /sys/kernel/debug/lbs_wireless/wlan0/registers/wrmac # echo "0xa5f0 0xa027181c" > /sys/kernel/debug/lbs_wireless/wlan0/registers/wrmac
</pre>