[syslog-ng] Help understanding syslog-ng open-source code

Hey guys, im trying to implement a few features for the open-source version of syslog-ng. I am going to build my own device driver to better fit my needs. My problem with this task is, that the source code lacks proper commenting and you can easily get lost. Now I wanted to know if theres some special forum or source code documentation and if not, is there someone who is able and willing to answer some questions about the syslog-ng code? This would give my work a huge boost. Thanks for your responses in advance, Emanuel