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<sect1 id="gpsd.h"><title><filename>gpsd.h</filename></title>
<informaltable frame='all' pgwide='1'>
<tgroup cols='2'>
<colspec colname='c1'></colspec>
<colspec colname='c2'></colspec>
<spanspec spanname='s1' namest='c1' nameend='c2'></spanspec>
<thead>
<row>
<entry>Structures:-</entry><entry>Provides fundamental types and structures for the GPS daemon. Only key structures are analysed here. Simple definitions and prototype definitions are ignored.</entry>
</row>
</thead>
<tbody>
<row>
<entry><function>struct gps_packet_t {}</function></entry>
<entry><para>Provides the data structure used by <function>packet_getter()</function>. 1 per <application>gpsd</application> session.</para></entry>
</row>
<row>
<entry><function>struct gps_context_t {}</function></entry>
<entry><para>Provides context data like number of good fixes seen. 1 per <application>gpsd</application> session.</para></entry>
</row>
<row>
<entry><function>struct gps_type_t {}</function></entry>
<entry><para>This is the method table that every driver uses to communicate with the daemon. It is a table of entry points or externally visible data. 1 per driver type.</para></entry>
</row>
<row>
<entry><function>struct gps_device_t {}</function></entry>
<entry><para>This is the data belonging to a session (global state) and also private storage for the session's associated device driver (if needed). 1 per <application>gpsd</application> session.</para></entry>
</row>
</tbody>
<tfoot>
<row>
<entry spanname='s1' align='left'>Notes based on <function>$Id: gpsd.h 4304 2007-03-14 06:07:46Z ckuethe $</function></entry>
</row>
</tfoot>
</tgroup>
</informaltable>
</sect1>
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