Garmin maps
From Navit's Wiki
There is an experimental driver for Garmin IMG maps.
It's located here: http://libgarmin.sourceforge.net/ You will need the 'subversion' (svn) tool to install this driver.
You can search a map for your area there: http://garminmapsearch.com/
Please give us feedback / bug report about this driver!
Prerequisites
First, get libgarmin from svn, and install it, as usual :
svn co http://libgarmin.svn.sourceforge.net/svnroot/libgarmin/libgarmin/dev libgarmin cd libgarmin ./autosh.sh make
And, as root :
make install
How to build the driver
Be sure to update navit to latest cvs
reconfigure and build navit.
cd ../.. ./autogen.sh && ./configure && make
Configure your map source
Now add your first garmin map to navit.xml
<mapset enabled="yes">
<map type="garmin" enabled="yes" data="/path/to/gmapsupp.img"/>
</mapset>
Where you can give it either dskimg file (gmapsupp.img) or a .tdb file

