USB 3.0 LINK LAYER TIMER ADJUSTMENT TO EXTEND DISTANCE

摘要

Methods and devices for transmitting SuperSpeed information between a host device and a USB device via an extension medium are provided. Link partner relationships are established between the host device and an upstream facing port device, between the USB device and a downstream facing port device, and between the upstream facing port device and the downstream facing port device. While the link partner relationship between the upstream facing port device and the downstream facing port device is substantially compliant to the USB 3.0 Specification, the link partner relationship may use a configurable link layer acknowledgement timer to compensate for delays in transmission over the extension medium.