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authorEric S. Raymond <esr@thyrsus.com>2005-04-29 21:59:09 +0000
committerEric S. Raymond <esr@thyrsus.com>2005-04-29 21:59:09 +0000
commit20d71cd4db34a319b28e8707fefafbbfad78f0b3 (patch)
tree2584848d205bacf690bae7575bb1885ce6a5779d /gpsd.xml
parent874a728658be3db9bcf3bdcdb36a4e6a0221bdda (diff)
downloadgpsd-20d71cd4db34a319b28e8707fefafbbfad78f0b3.tar.gz
Move the USB driver inventory early enough that the daemon is still root.
Diffstat (limited to 'gpsd.xml')
-rw-r--r--gpsd.xml6
1 files changed, 6 insertions, 0 deletions
diff --git a/gpsd.xml b/gpsd.xml
index 43d1304b..f2942052 100644
--- a/gpsd.xml
+++ b/gpsd.xml
@@ -669,6 +669,12 @@ don't have this problem. You may run <application>gpsd</application> at
debug level 4 to see the chipset type and firmware revision
level.</para>
+<para>When using SiRF chips, the VDOP figure and associated error estimates
+are computed by <application>gpsd</application> rather than reported
+by the chip. The computation does not exactly match what SiRF chips
+do internally, which includes some satellite weighting using
+parameters <application>gpsd</application> cannot see.</para>
+
</refsect1>
<refsect1 id='files'><title>FILES</title>