Power & Source of Big Ideas

How do you create camera iq file? We developed a kernel driver for a sensor. It works fine, but we would like to be able to us the ISP and 3A. Can anyone help us point to the direction?
We develop our own driver for a camera sensor. We could open the camera, read images, and changes the setting just fine. However, we would like to use the 3A ISP on RK3399. Does anyone know how to create one?