Hi, I have a box presents to PC as a CDC-ACM device. And I write an simple
Application to write data to the box by ttyACM0.
The application is a loop that write the data to box, and waiting for
the box response
the data.
The question is , after wrote the data to the box, the box will
process the data for a while.
before I read the box, it seems
the ACM driver will read the box automaticly(I find that from the usb
sniffer). and there
is a lot of READ-NAK packet.
So could the box disable the automatic read by someway such as flow
control, and
until it ready for sending response?
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