| 摘要 |
An electricity saving method and apparatus for a USB data transmission system. The USB data transmission system comprises a USB device and a host device which conducts data transmission with the USB device using mass storage protocol. The method comprises: a host device detecting a detection instruction sent to a USB device thereby, the detection instruction being used for detecting whether the USB device has been connected to the host device; when the detection instruction is detected and specified data transmission does not exist between the host device and the USB device, the host device replacing the USB device to parse and respond to the detection instruction; and when the duration during which there is no data transmission between the host device and the USB device exceeds a preset duration, the host device instructing the USB device to suspend. The technical solution provided in the embodiments of the present invention is applied to save the power consumption of a USB device, and thus the power consumption of a USB data transmission system is saved, and the achievement is simple, and it is convenient to popularize at the same time. |
