interfacing usb based hardware to usb port

hello
we have developed usb based hardware using USBN9603-04.
how can i interface hardware to Pc.
first if i connect hardware to usb port , usb port will send id to
hardware .
how can i identify the id,then only i can send my frames to usb port or
recieve.
Please suggest me
ram


Interface Embedded Systems Limited, India.


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