"iwconfig wlan0 rate auto" fails on latest wireless-testing with ath9k

[Joerg Pommnitz <pommnitz@yahoo.com>]

Hello all,
if I set a fixed data rate with iwconfig I can't get out anymore.
Trying to switch back to automatic rate control gives an error message:

Script started on Thu Jan 14 13:18:14 2010
root@ath9k-0-007:~# iwconfigwlan0
Warning: Driver for device wlan0 has been compiled with version 22
of Wireless Extension, while this program supports up to version 20.
Some things may be broken...

wlan0     IEEE 802.11abgn  ESSID:"athtest5200"  
          Mode:Ad-Hoc  Frequency:5.2 GHz  Cell: 02:02:6F:23:12:0B   
          Tx-Power=20 dBm   
          Retry limit:7   RTSthr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          
root@ath9k-0-007:~# iwconfigwlan0 rate 6M
root@ath9k-0-007:~# iwconfigwlan0
Warning: Driver for device wlan0 has been compiled with version 22
of Wireless Extension, while this program supports up to version 20.
Some things may be broken...

wlan0     IEEE 802.11abgn  ESSID:"athtest5200"  
          Mode:Ad-Hoc  Frequency:5.2 GHz  Cell: 02:02:6F:23:12:0B   
          Tx-Power=20 dBm   
          Retry limit:7   RTSthr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          
root@ath9k-0-007:~# iwconfigwlan0 rate auto
Error for wireless request "Set Bit Rate" (8B20) :
    SET failed on device wlan0 ; Invalid argument.
root@ath9k-0-007:~# 
Script done on Thu Jan 14 13:18:56 2010

Funny thing is, not even "rmmodath9k mac80211" is enough to get out of
the fixed data rate.

Any ideas? And, BTW. will there be a way to set the data rate with iw?

 -- 
Regards 
Joerg 

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