C # implement USB communication based on LibUsbDotNet (I ),
The C # USB communication information on the internet is relatively small, basically based on LibUsbDotNet and CyUsb. There is also an OPOS for printer devices.
This article is based on LibUsbDotNet.
1. download and install the LibUsbDotNet Installation File.
2. Run Filter Wizard and Install a device filter. Install the usb device for communication.
3. Create a simple console project for testing to print the information of the communication device.
Related code:
Reference
using LibUsbDotNet;using LibUsbDotNet.Main;using LibUsbDotNet.Info;
PrintUsbInfo
public static void PrintUsbInfo() { UsbDevice usbDevice = null; UsbRegDeviceList allDevices = UsbDevice.AllDevices; Console.WriteLine("Found {0} devices", allDevices.Count); foreach (UsbRegistry usbRegistry in allDevices) { Console.WriteLine("Got device: {0}\r\n", usbRegistry.FullName); if (usbRegistry.Open(out usbDevice)) { Console.WriteLine("Device Information\r\n------------------"); Console.WriteLine("{0}", usbDevice.Info.ToString()); Console.WriteLine("VID & PID: {0} {1}", usbDevice.Info.Descriptor.VendorID, usbDevice.Info.Descriptor.ProductID); Console.WriteLine("\r\nDevice configuration\r\n--------------------"); foreach (UsbConfigInfo usbConfigInfo in usbDevice.Configs) { Console.WriteLine("{0}", usbConfigInfo.ToString()); Console.WriteLine("\r\nDevice interface list\r\n---------------------"); ReadOnlyCollection<UsbInterfaceInfo> interfaceList = usbConfigInfo.InterfaceInfoList; foreach (UsbInterfaceInfo usbInterfaceInfo in interfaceList) { Console.WriteLine("{0}", usbInterfaceInfo.ToString()); Console.WriteLine("\r\nDevice endpoint list\r\n--------------------"); ReadOnlyCollection<UsbEndpointInfo> endpointList = usbInterfaceInfo.EndpointInfoList; foreach (UsbEndpointInfo usbEndpointInfo in endpointList) { Console.WriteLine("{0}", usbEndpointInfo.ToString()); } } } usbDevice.Close(); } Console.WriteLine("\r\n----- Device information finished -----\r\n"); } }
Call
public static void Main(string[] args) { PrintUsbInfo(); // Wait for user input.. Console.ReadKey(); }