Patent ID: 9047418
Filing Date: 2015-06-02
Classification: G06F

Abstract:
1. A computing device configurable to provide a downstream facing port (DFP) through which a USB device can communicate with a host via an upstream facing port (UFP), wherein the DFP is configured to: receive a request packet via a non-USB communication channel; transmit the request packet via a USB-compliant communication channel to the USB device; receive a data packet from the USB device; transmit the data packet via the non-USB communication channel; generate an acknowledgement packet and transmit the generated acknowledgement packet to the USB device that implicitly indicates that the data packet was received by the host by requesting a subsequent data packet when the DFP is configured in a first latency mode; and transmit a received acknowledgement packet to the USB device that implicitly indicates that the data packet was received by the host by requesting a subsequent data packet in response to receiving the acknowledgement packet from the UFP via the non-USB communication channel when the DFP is configured in a second latency mode.