usb端口测试程序,查找符合HID规范的USB设备,查找USB设备接口,读取设备路径名,开放与设备的通信,查询设备标识,供应商,产品,产品版本.-usb port testing procedures, find consistent with the HID specification USB device, USB device interface to find, read device path name, open communication and equipment inquiri