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? -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
