C＃如何从多个连接相同的USB设备找出特定的USB设备？

Question

我有相同的2 Logitech网络摄像头设备（c920）。我想将这2个设备分配到IN-Camera和OUT-Camera，因为我需要IN和OUT用户的交易。

现在，当我连接到PC一样。由于OEM也相同，因此VID，PID相同。

那么我怎样才能找到2设备每次插入电脑或PC后，由于任何原因重新启动。

所以我正在寻找这个USB设备的一些唯一的USB描述符。

需要帮助。

Answer 1

下面的代码可能会帮助到您的USB设备的硬件ID：

using System; 
using System.Management; 

namespace akWmiDeviceDemo 
{ 
    class Program 
    { 
     static void Main(string[] args) 
     { 
     // inspired by: 
     // https://blogs.msdn.microsoft.com/powershell/2007/02/24/displaying-usb-devices-using-wmi/ 
      string strComputer = "."; 
      ManagementScope scope = new ManagementScope(@"\\" + strComputer + @"\root\cimv2"); 
      ObjectQuery queryUsbControllers = new ObjectQuery("Select * From Win32_USBControllerDevice"); 
      ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, queryUsbControllers); 
      ManagementObjectCollection usbControllers = searcher.Get(); 

      foreach (ManagementObject usbController in usbControllers) 
      { 
       string dependent = (string)usbController["Dependent"]; 
       string[] names = dependent.Replace("\"", "").Split(new char [] {'='}); 
       string strUsbControllerName = names[1]; 
       ObjectQuery queryUsbDevices = new ObjectQuery("Select * From Win32_PnPEntity Where DeviceID = '" + strUsbControllerName + "'"); 
       ManagementObjectSearcher deviceSearcher = new ManagementObjectSearcher(scope, queryUsbDevices); 
       ManagementObjectCollection usbDevices = deviceSearcher.Get(); 

       o(""); 
       o("USB controller = {0}", strUsbControllerName); 
       foreach (ManagementObject usbDevice in usbDevices) 
       { 
        o("description = {0}", usbDevice["Description"]); 
        o("PnPDeviceID = {0}", usbDevice["PnPDeviceID"]); 
       } 
      } 
     } 

     static void o(string format, params object[] args) 
     { 
      Console.WriteLine(format, args); 
     } 
    } 
}