[App_rpt] chan_usbradio

Has anyone successfully set asterisk+app_rpt+chan_usbradio on Ubuntu (debian) 6.06? I am running into this issue: [Mar 6 10:34:16] WARNING[27028]: loader.c:363 load_dynamic_module: Error loading module 'chan_usbradio.so': /usr/lib/asterisk/modules/ chan_usbradio.so: undefined symbol: usb_busses [Mar 6 10:34:16] WARNING[27028]: loader.c:649 load_resource: Module 'chan_usbradio.so' could not be loaded. Asterisk Ready. From what I understand, I have all the packages necessary installed (usbmgr, libusb-dev) but I am not sure what is causing that.. Any help would be appreciated. Thanks. Jim / k6jwn