How to use pdo in codeigner?

[eluser]levani[/eluser]
Great news that the latest version of codeigniter has PDO support but currently I can't find any tutorial that describes exactly how should I use it in CI. Has anyone find any tutorial or documentation about this topic?

[eluser]Unknown[/eluser]
I have some solution here: Workaround for SQLite in 2.1-stable branch