Creating a custom database driver

[isaiahfisher]

Does anyone know if there is documentation surrounding which interfaces must be extended to create a custom database driver. I have a custom PDO driver that I would like to implement into Laravel while maintaining the functionality of models and eloquent. I know a custom database driver can be created because I have seen laravel-mongodb. I am not sure where to start on creating a custom database driver and was hoping there would be some documentation on the interfaces I need to implement in order to accomplish this.

Thanks in advance for any advice you can provide to me!