in case you missed it, the same device is busy message also appears in the syslog i posted first:
Mar 21 10:14:27 arturh-laptop NetworkManager: <WARNING>^I nm_device_802_11_wireless_set_mode (): error setting card wlan0 to Infrastructure mode: Device or resource busy kismet worked fine in edgy too, so my card supports monitor mode -- [feisty] regression: prism54g driver does not work anymore, worked fine in edgy https://launchpad.net/bugs/94389 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
