使用WMI检测USB设备

首先，需要用到win32ole。

 

require 'win32ole'

 

具体实现：

 

    wmi = WIN32OLE.connect("winmgmts://")
    devices = wmi.ExecQuery("Select * From Win32_USBControllerDevice")
    devices.each do |device|
      device_name = device.Dependent.gsub('"', '').split('=')[1]
      usb_devices = wmi.ExecQuery("Select * From Win32_PnPEntity Where DeviceID = '#{device_name}'")
      for usb_device in usb_devices do
        puts usb_device.Description
        if usb_device.Description == 'USB Mass Storage Device'
          # DO SOMETHING HERE
        end
      end
    end

 

示例输出：

 

USB Root Hub
USB 人体学输入设备
HID-compliant mouse
USB Root Hub
USB Root Hub
USB Root Hub
USB Root Hub
USB2.0 Camera