last resort

	@param mfg: MFG or MANUFACTURER field
	@type mfg: string
	@param mdl: MDL or MODEL field
	@type mdl: string
	@param description: DES or DESCRIPTION field, optional
	@type description: string
	@param commandsets: CMD or COMMANDSET field, optional
	@type commandsets: string
	@param uri: device URI, optional (only needed for debugging)
	@type uri: string
        @param downloadedfiles: filenames from downloaded packages
        @type downloadedfiles: string list
        @param make_and_model: device-make-and-model string
        @type make_and_model: string
	@returns: an integer,string pair of (status,ppd-name)
	N)