Program to analyse signal from camera to PC through USB port

[nobtiba]

Does anybody know what program to analyse the signal comes from camera through usb port to PC ?

I have an Olympus SP500-UZ camera. It has a small usb port for data and AV signal. Now I need a software or method which can help me to know how the signal is received and sent from/to PC - Camera. And it could help me know what signal comes from which camera if I connect several cameras of this type to the PC. Then I could also choose to trigger each camera by sending a suitable signal.

Please, if you know any related- information about this. Please help me !!!

Thank you very much !