Universal serial bus (usb) communication systems and methods

Universal serial bus (USB) communication systems and methods are disclosed. In particular, aspects of the present disclosure optimize polling and scheduling of bulk data transfers from bulk endpoints connected through a USB connection. By reducing the amount of polling, and by favoring endpoints that are known to have data to transfer, unnecessary signaling is avoided. Reduction in signaling allows more data to be transferred in a shorter amount of time. Reducing the time required for a data transfer may allow for low power modes to be used, which in turn further saves power. 公开了通用串行总线(USB)通信系统和方法。具体而言，本公开的各方面优化来自通过USB连接来连接的批量端点的批量数据传输的轮询和调度。通过减少轮询量以及通过偏向于已知具有要传输的数据的端点，避免了不必要的信令。信令的缩减允许在更短的时间量中传输更多的数据。减少数据传输所需要的时间可允许使用低功率模式，这进而进步省电。