tackling update of mysql drivers possible?

[eluser]ommy[/eluser]
Goodday,
I've not been using CI for very long but i felt the need to implement functionality to the mysql database driver. Is this even remotely possible? Lynch me if someone has asked such a question before. I've been searching the forum but could not find anything like it.
I deeply appolagize if my incompetent searching causes you all to roll your eyes

Anyway thanks for taking intrest or even answering my question.