Hi Sankar,

> > 1. I downloaded the ofono source code from the web, Tried compiling it,
> > and building it. 2. The code got successfully compiled and ofonod was
> > generated. But looks like no specific .so s got built for the
> > drivers/plugins.

In the future please post such questions to the oFono mailing list.  And to 
answer this specific topic:

All oFono drivers / plugins found in drivers/ and plugins/ are built as 
builtins.  This means that they're _statically_ linked and no .so files are 
generated.  However, oFono can load external .so plugins as well.

Regards,
-Denis