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| author | Eric S. Raymond <esr@thyrsus.com> | 2009-03-09 19:54:00 +0000 |
|---|---|---|
| committer | Eric S. Raymond <esr@thyrsus.com> | 2009-03-09 19:54:00 +0000 |
| commit | b52f7f6cbd5e7478065ab42c848baac08731ccab (patch) | |
| tree | ca3d218192379079478a3814eaf509a27556669d /www/writing-a-driver.xml | |
| parent | c6508d944b31dca62fba6ea1d4c57a275e91d811 (diff) | |
| download | gpsd-b52f7f6cbd5e7478065ab42c848baac08731ccab.tar.gz | |
Document the simplification in the driver interface.
Diffstat (limited to 'www/writing-a-driver.xml')
| -rw-r--r-- | www/writing-a-driver.xml | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/www/writing-a-driver.xml b/www/writing-a-driver.xml index 13834893..044c4c92 100644 --- a/www/writing-a-driver.xml +++ b/www/writing-a-driver.xml @@ -17,6 +17,15 @@ <revhistory> <revision> <revnumber>1.6</revnumber> + <date>9 Mar 2009</date> + <authorinitials>er</authorinitials> + <revremark> + Updated by esr; libgpsd_core.c no longr requires modification + when you add a driver. + </revremark> + </revision> + <revision> + <revnumber>1.6</revnumber> <date>1 Mar 2009</date> <authorinitials>er</authorinitials> <revremark> @@ -392,11 +401,6 @@ files:</para> <entry><para>data type definitions</para></entry> </row> <row> -<entry><filename>libgpsd_core.c</filename></entry> -<entry><para>library to access GPSs at low -level</para></entry> -</row> -<row> <entry><filename>packet.c</filename></entry> <entry><para>packet sniffing state machine</para></entry> </row> @@ -477,16 +481,6 @@ declarations of prototypes in <quote> <userinput>**gpsd_drivers</userinput></quote> that the new driver needs to interface to the rest of the code.</para> -<para>The function of <quote><filename>libgpsd_core.c</filename> -</quote> is to provide some low-level entries into <application> -gpsd</application> from external client software since these cannot -directly access the GPS or its port when the daemon is running. -The change is again quite small. It is just an extra entry in the -<quote><function>gpsd_poll</function></quote> code to include a -packet switch to the Jupiter-T driver if the packet sniffer finds -a matching packet.</para> - - <para>The file <quote><filename>packet.c</filename></quote> is the state engine which scans packets as they arrive and tries to match them to an existing driver. Here is where our driver will |