firware il load with vendor urb of type A0 if u use an ez usb chip.
If firmware already load i guess ez usb stuff won't be very useful for you as you will
have to dialog with firmware protocol rather than native ez usb one.
Anchor web site has full datasheet available for the chip.
Look in ecia
I think most of those questions will be quickly answered
if you look at the Cypress website, or grep Linux sources.
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