Current providers recognise these options:

	* org.freedesktop.Geoclue.GPSDevice
		Gypsy provider will use this device name 
		(e.g. "00:02:76:C5:81:BF" or "/dev/pgps")

	* org.freedesktop.Geoclue.GPSHost
		Gpsd provider will contact gpsd on this host.
        Default is NULL (localhost)

    * org.freedesktop.Geoclue.GPSPort
		Gpsd provider will contact gpsd on this port.
        Default is "2947".



Provider options can be set with SetOptions-method. Geoclue-master
reads options from gconf (/apps/geoclue/master): as an example, the 
Gypsy device for geoclue master can be set with
 gconftool-2  \
	-t string \
	-s /apps/geoclue/master/org.freedesktop.Geoclue.GPSDevice 00:02:76:C5:81:BF