On Fri, May 25, 2012 at 9:37 PM, Fabian Weiss <fab...@fabske.de> wrote:
> What exactly do you mean by "communication protocol"? I know what is in
> the 42 bytes I am expecting to receive from the USB device.
> Do you think I first have to send something to the device?

You have to know that. You may well have to send something to
the device and then expect to get the data from the device.

The communication protocol means how the device communicate
with the host.



-- 
Xiaofan

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