Hi
I have some problem connecting if I don't follow some parameters 
sequence in iwconfig command for example if I issues the following
# iwconfig wlan0 essid test  ap xx:xx:xx:xx:xx:xx
#iwconfif wlan0 channel 9

in d80211 if essid and bssid set it will start authentication with 
default channel and authentication will timeout then after the second 
command kicks in to tune to the right channel the retry counter of 
authentication will be at maximum and we wont authenticate, same problem 
exist for IBSS it will start searching but once we call #iwconfif wlan0 
channel 9 this will stop scanning and we stop IBSS searching . I 
attached a patch for workaround this problem. I am not sure this is the 
right way to fix just attached to illustrate the problem.
Mohamed