Camera interface on Wi-i.mx51

Can anyone explain or show me the documentation that explain how to interface a camera on the Wi-i.mx51 camera port? Are there any support software for the camera digital input?

Alternatively, I can use USB cameras. How many video streams can we read at the same time from USB cameras connected to the Wi-i.mx51 board? Is it difficult to find the camera driver for DIGI Embedded Linux or Windows CE 6.0?

Finger cross, can we interface an analogue video camera on the board? It seems to have the video encoder on board.

Sorry, there are so many questions. Most of the information about this board is provided but the information about camera interface.

It seemed the DIGI ESP provided the YUV 4:2:2 video capture, but I am not sure that it can use with other cameras (most of the example codes are for their cameras kit). Hopefully, I can modify and used some of the codes.

Well. Analog camera is not supported.
All it is having is VGA input… No output