Kismet: ERROR: Unable to create VAP: Operation not supported

[Amedee Van Gasse (ub)]

Running kismet gives me the following output:

$ sudo kismet
Launching kismet_server: //usr/bin/kismet_server
Suid priv-dropping disabled.  This may not be secure.
No specific sources given to be enabled, all will be enabled.
Non-RFMon VAPs will be destroyed on multi-vap interfaces (ie, madwifi-ng)
Enabling channel hopping.
Enabling channel splitting.
NOTICE: Disabling channel hopping, no enabled sources are able to change
channel.
Source 0 (madwifi): Enabling monitor mode for madwifi_ag source interface
wlan0 channel 6...
ERROR:  Unable to create VAP: Operation not supported
ERROR:  Unable to create monitor-mode VAP
WARNING: wlan0 appears to not accept the Madwifi-NG controls. Will attempt
to configure it as a standard Madwifi-old interface. If you are using
madwifi-ng, be sure to set the source interface to the wifiX control
interface, NOT athX
FATAL: Failed to retrieve list of private ioctls 95:Operation not supported
Done.


In /etc/kismet/kismet.conf I have:
source=madwifi_ag,wlan0,madwifi


$ lspci | grep -i
03:00.0 Ethernet controller: Atheros Communications Inc. AR5001 Wireless
Network Adapter (rev 01)


$ iwconfig wlan0
wlan0     IEEE 802.11bg  ESSID:"3Com"
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:14:7C:4E:72:B2
          Bit Rate=48 Mb/s   Tx-Power=20 dBm
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=38/70  Signal level=-72 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0


What am I missing here?
I googled for "unable to create VAP" but I didn't find anything that
solved the problem. Only questions from other people that have this error,
and no answers.

-- 
Amedee Van Gasse