METHOD, SYSTEM AND DEVICE FOR A USB DATA CARD WITH U DISK FUNCTION TO ENTER SLEEP STATE

摘要

A method, system and device for enabling a Universal Serial Bus (USB) data card with a USB flash drive function to hibernate are disclosed. The USB data card comprises two kinds of USB data card configuration information, the first USB data card configuration information of which is configuration information of the USB data card with the USB flash drive function, and the second USB data card configuration information of which is configuration information of the USB data card without the USB flash drive function. The USB data card sends the first USB data card configuration information to a host at first during enumeration with the host, and then sends the second USB data card configuration information to the host after receiving a configuration information switching instruction from the host and hibernates. The USB data card with the USB flash drive function can hibernate automatically according to the USB interface specification, thereby reducing the power consumption.