To develop a read-write control procedures which can support the USB communication between intelligent device and the host under Linux operating system

in order to meet the needs of the control and communicate

under the requirement of developping a USB device driver to establish the connections quickly and conveniently

meanwhile

the transmission between host and intelligent device must be correct and stable.In order to solve the above problems

this paper realizes the development method of USB driver based on CyAPI library under a Linux operating system.In the the development of read-write control procedures of intelligent devices

the USB driver is verified

by calling device driver directly realized the control of the USB device and data transmission

at the same time the information feedback of intelligent device can be received timely and correct

the device driver shows good stability.