Mick Durkin 2.0 14 November 2007 md Updated to version 4420 These notes are meant as an aid to reading and understanding some of the main code files forming the gpsd daemon and its support libraries. They are not a line-by-line explanation but only pick out the important (or unusual) aspects of the code.They do not address the many programs that are used for test purposes, the individual device driver files or any of the supplied applications that use gpsd. &bits.h; &dgnss.c; &dgpsip.c; &driver_proto.c; &drivers.c; &geoid.c; &gpsd.c; &gpsd.h; &gpsd_dbus.c; &gps.h; &gpsutils.c; &isgps.c; &libgps.c; &libgpsd_core.c; &libgpsmm.cpp; &libgpsmm.h; &netlib.c; &nmea_parse.c; &ntpshm.c; &ntrip.c; &packet.c; &packet_names.h; &packet_states.h; &report.c; &rtcm.c; &serial.c; &subframe.c; &timebase.h; &wrapup;