在.NET中使用USB设备

使用.Net(C#),如何使用USB设备？

如何检测USB事件(连接/断开连接)以及如何与设备通信(读/写).

是否有本地.Net解决方案来执行此操作？

我尝试过使用SharpUSBLib,它搞砸了我的电脑(需要系统还原).也发生在同一个项目的同事身上.

我在LibUSBDotNet中找到了另一种选择:http://sourceforge.net/projects/libusbdotnet 但是它还没有使用它,但似乎很好并且最近更新了(与夏普不同).

编辑:截至2017年2月中旬,LibUSBDotNet大约2周前更新.同时,SharpUSBLib自2004年以来一直没有更新.

没有本机(例如,系统库)解决方案.这就是moobaa提到的SharpUSBLib存在的原因.

如果您希望为USB设备推送自己的处理程序,可以查看System.IO.Ports的SerialPort类.

我使用以下代码来检测USB设备何时从我的计算机插入和拔出:

class USBControl : IDisposable
    {
        // used for monitoring plugging and unplugging of USB devices.
        private ManagementEventWatcher watcherAttach;
        private ManagementEventWatcher watcherRemove;

        public USBControl()
        {
            // Add USB plugged event watching
            watcherAttach = new ManagementEventWatcher();
            //var queryAttach = new WqlEventQuery("SELECT * FROM Win32_DeviceChangeEvent WHERE EventType = 2");
            watcherAttach.EventArrived += new EventArrivedEventHandler(watcher_EventArrived);
            watcherAttach.Query = new WqlEventQuery("SELECT * FROM Win32_DeviceChangeEvent WHERE EventType = 2");
            watcherAttach.Start();

            // Add USB unplugged event watching
            watcherRemove = new ManagementEventWatcher();
            //var queryRemove = new WqlEventQuery("SELECT * FROM Win32_DeviceChangeEvent WHERE EventType = 3");
            watcherRemove.EventArrived += new EventArrivedEventHandler(watcher_EventRemoved);
            watcherRemove.Query = new WqlEventQuery("SELECT * FROM Win32_DeviceChangeEvent WHERE EventType = 3");
            watcherRemove.Start();
        }

        /// 

        /// Used to dispose of the USB device watchers when the USBControl class is disposed of.
        /// 
        public void Dispose()
        {
            watcherAttach.Stop();
            watcherRemove.Stop();
            //Thread.Sleep(1000);
            watcherAttach.Dispose();
            watcherRemove.Dispose();
            //Thread.Sleep(1000);
        }

        void watcher_EventArrived(object sender, EventArrivedEventArgs e)
        {
            Debug.WriteLine("watcher_EventArrived");
        }

        void watcher_EventRemoved(object sender, EventArrivedEventArgs e)
        {
            Debug.WriteLine("watcher_EventRemoved");
        }

        ~USBControl()
        {
            this.Dispose();
        }


    }

您必须确保在关闭应用程序时调用Dispose()方法.否则,在关闭时,您将在运行时收到COM对象错误.

适用于.NET的#usblib USB库