由于蓝牙协议是在无线技术下的仿真串口，蓝牙中OBＥＸ的许多应用正是基于蓝牙仿真串口。而流接口驱动程序通过一组流接口函数使得应用程序可以通过文件系统中的特殊文件而与设备接口，因此蓝牙仿真串口的功能性更适合流接口驱动程序的结构。-As wireless technology Bluetooth protocol is simulated under the serial port, OBEX Bluetooth in many applications is based on the Bluetooth serial port emulation. The stream interface driver functions through a set of stream interface allows an application to the file system through a special file with the device interface, so the functionality of the Bluetooth serial port emulation is more suitable for the structure of stream interface driver.