config BR2_PACKAGE_GPSD tristate "gpsd - An interface daemon for GPS receivers" default m if CONFIG_DEVEL select BR2_PACKAGE_LIBPTHREAD select BR2_PACKAGE_UCLIBCXX help gpsd is a monitor daemon that watches a TCP/IP port (2947 by default), waiting for applications to request information from GPSes or differential-GPS radios attached to the host machine. Each GPS or radio is expected to be direct-connected to the host via a USB or RS232C serial port. The port may be specified to gpsd at startup, or it may be set via a command shipped down a local control socket (e.g. by a USB hotplug script). Given a GPS device by either means, gpsd discovers the correct port speed and protocol for it. http://gpsd.berlios.de/