C# 获取USB设备信息
WMI方式
using System;
using System.Management;using System.Text.RegularExpressions;using System.Collections.Generic;namespace Splash.IO.PORTS{ /// <summary> /// 即插即用设备信息结构 /// </summary> public struct PnPEntityInfo { public String PNPDeviceID; // 设备ID public String Name; // 设备名称 public String Description; // 设备描述 public String Service; // 服务 public String Status; // 设备状态 public UInt16 VendorID; // 供应商标识 public UInt16 ProductID; // 产品编号 public Guid ClassGuid; // 设备安装类GUID } /// <summary> /// 基于WMI获取USB设备信息 /// </summary> public partial class USB { #region UsbDevice /// <summary> /// 获取所有的USB设备实体（过滤没有VID和PID的设备） /// </summary> public static PnPEntityInfo[] AllUsbDevices { get { return WhoUsbDevice(UInt16.MinValue, UInt16.MinValue, Guid.Empty); } } /// <summary> /// 查询USB设备实体（设备要求有VID和PID） /// </summary> /// <param name="VendorID">供应商标识，MinValue忽视</param> /// <param name="ProductID">产品编号，MinValue忽视</param> /// <param name="ClassGuid">设备安装类Guid，Empty忽视</param> /// <returns>设备列表</returns> public static PnPEntityInfo[] WhoUsbDevice(UInt16 VendorID, UInt16 ProductID, Guid ClassGuid) { List<PnPEntityInfo> UsbDevices = new List<PnPEntityInfo>(); // 获取USB控制器及其相关联的设备实体 ManagementObjectCollection USBControllerDeviceCollection = new ManagementObjectSearcher("SELECT * FROM Win32_USBControllerDevice").Get(); if (USBControllerDeviceCollection != null) { foreach (ManagementObject USBControllerDevice in USBControllerDeviceCollection) { // 获取设备实体的DeviceID String Dependent = (USBControllerDevice["Dependent"] as String).Split(new Char[] { '=' })[1]; // 过滤掉没有VID和PID的USB设备 Match match = Regex.Match(Dependent, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}"); if (match.Success) { UInt16 theVendorID = Convert.ToUInt16(match.Value.Substring(4, 4), 16); // 供应商标识 if (VendorID != UInt16.MinValue && VendorID != theVendorID) continue; UInt16 theProductID = Convert.ToUInt16(match.Value.Substring(13, 4), 16); // 产品编号 if (ProductID != UInt16.MinValue && ProductID != theProductID) continue; ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher("SELECT * FROM Win32_PnPEntity WHERE DeviceID=" + Dependent).Get(); if (PnPEntityCollection != null) { foreach (ManagementObject Entity in PnPEntityCollection) { Guid theClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID if (ClassGuid != Guid.Empty && ClassGuid != theClassGuid) continue; PnPEntityInfo Element; Element.PNPDeviceID = Entity["PNPDeviceID"] as String; // 设备ID Element.Name = Entity["Name"] as String; // 设备名称 Element.Description = Entity["Description"] as String; // 设备描述 Element.Service = Entity["Service"] as String; // 服务 Element.Status = Entity["Status"] as String; // 设备状态 Element.VendorID = theVendorID; // 供应商标识 Element.ProductID = theProductID; // 产品编号 Element.ClassGuid = theClassGuid; // 设备安装类GUID UsbDevices.Add(Element); } } } } } if (UsbDevices.Count == 0) return null; else return UsbDevices.ToArray(); } /// <summary> /// 查询USB设备实体（设备要求有VID和PID） /// </summary> /// <param name="VendorID">供应商标识，MinValue忽视</param> /// <param name="ProductID">产品编号，MinValue忽视</param> /// <returns>设备列表</returns> public static PnPEntityInfo[] WhoUsbDevice(UInt16 VendorID, UInt16 ProductID) { return WhoUsbDevice(VendorID, ProductID, Guid.Empty); } /// <summary> /// 查询USB设备实体（设备要求有VID和PID） /// </summary> /// <param name="ClassGuid">设备安装类Guid，Empty忽视</param> /// <returns>设备列表</returns> public static PnPEntityInfo[] WhoUsbDevice(Guid ClassGuid) { return WhoUsbDevice(UInt16.MinValue, UInt16.MinValue, ClassGuid); } /// <summary> /// 查询USB设备实体（设备要求有VID和PID） /// </summary> /// <param name="PNPDeviceID">设备ID，可以是不完整信息</param> /// <returns>设备列表</returns> public static PnPEntityInfo[] WhoUsbDevice(String PNPDeviceID) { List<PnPEntityInfo> UsbDevices = new List<PnPEntityInfo>(); // 获取USB控制器及其相关联的设备实体 ManagementObjectCollection USBControllerDeviceCollection = new ManagementObjectSearcher("SELECT * FROM Win32_USBControllerDevice").Get(); if (USBControllerDeviceCollection != null) { foreach (ManagementObject USBControllerDevice in USBControllerDeviceCollection) { // 获取设备实体的DeviceID String Dependent = (USBControllerDevice["Dependent"] as String).Split(new Char[] { '=' })[1]; if (!String.IsNullOrEmpty(PNPDeviceID)) { // 注意：忽视大小写 if (Dependent.IndexOf(PNPDeviceID, 1, PNPDeviceID.Length - 2, StringComparison.OrdinalIgnoreCase) == -1) continue; } // 过滤掉没有VID和PID的USB设备 Match match = Regex.Match(Dependent, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}"); if (match.Success) { ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher("SELECT * FROM Win32_PnPEntity WHERE DeviceID=" + Dependent).Get(); if (PnPEntityCollection != null) { foreach (ManagementObject Entity in PnPEntityCollection) { PnPEntityInfo Element; Element.PNPDeviceID = Entity["PNPDeviceID"] as String; // 设备ID Element.Name = Entity["Name"] as String; // 设备名称 Element.Description = Entity["Description"] as String; // 设备描述 Element.Service = Entity["Service"] as String; // 服务 Element.Status = Entity["Status"] as String; // 设备状态 Element.VendorID = Convert.ToUInt16(match.Value.Substring(4, 4), 16); // 供应商标识 Element.ProductID = Convert.ToUInt16(match.Value.Substring(13, 4), 16); // 产品编号 // 产品编号 Element.ClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID UsbDevices.Add(Element); } } } } } if (UsbDevices.Count == 0) return null; else return UsbDevices.ToArray(); } /// <summary> /// 根据服务定位USB设备 /// </summary> /// <param name="ServiceCollection">要查询的服务集合</param> /// <returns>设备列表</returns> public static PnPEntityInfo[] WhoUsbDevice(String[] ServiceCollection) { if (ServiceCollection == null || ServiceCollection.Length == 0) return WhoUsbDevice(UInt16.MinValue, UInt16.MinValue, Guid.Empty); List<PnPEntityInfo> UsbDevices = new List<PnPEntityInfo>(); // 获取USB控制器及其相关联的设备实体 ManagementObjectCollection USBControllerDeviceCollection = new ManagementObjectSearcher("SELECT * FROM Win32_USBControllerDevice").Get(); if (USBControllerDeviceCollection != null) { foreach (ManagementObject USBControllerDevice in USBControllerDeviceCollection) { // 获取设备实体的DeviceID String Dependent = (USBControllerDevice["Dependent"] as String).Split(new Char[] { '=' })[1]; // 过滤掉没有VID和PID的USB设备 Match match = Regex.Match(Dependent, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}"); if (match.Success) { ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher("SELECT * FROM Win32_PnPEntity WHERE DeviceID=" + Dependent).Get(); if (PnPEntityCollection != null) { foreach (ManagementObject Entity in PnPEntityCollection) { String theService = Entity["Service"] as String; // 服务 if (String.IsNullOrEmpty(theService)) continue; foreach (String Service in ServiceCollection) { // 注意：忽视大小写 if (String.Compare(theService, Service, true) != 0) continue; PnPEntityInfo Element; Element.PNPDeviceID = Entity["PNPDeviceID"] as String; // 设备ID Element.Name = Entity["Name"] as String; // 设备名称 Element.Description = Entity["Description"] as String; // 设备描述 Element.Service = theService; // 服务 Element.Status = Entity["Status"] as String; // 设备状态 Element.VendorID = Convert.ToUInt16(match.Value.Substring(4, 4), 16); // 供应商标识 Element.ProductID = Convert.ToUInt16(match.Value.Substring(13, 4), 16); // 产品编号 Element.ClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID UsbDevices.Add(Element); break; } } } } } } if (UsbDevices.Count == 0) return null; else return UsbDevices.ToArray(); } #endregion #region PnPEntity /// <summary> /// 所有即插即用设备实体（过滤没有VID和PID的设备） /// </summary> public static PnPEntityInfo[] AllPnPEntities { get { return WhoPnPEntity(UInt16.MinValue, UInt16.MinValue, Guid.Empty); } } /// <summary> /// 根据VID和PID及设备安装类GUID定位即插即用设备实体 /// </summary> /// <param name="VendorID">供应商标识，MinValue忽视</param> /// <param name="ProductID">产品编号，MinValue忽视</param> /// <param name="ClassGuid">设备安装类Guid，Empty忽视</param> /// <returns>设备列表</returns> /// <remarks> /// HID：{745a17a0-74d3-11d0-b6fe-00a0c90f57da} /// Imaging Device：{6bdd1fc6-810f-11d0-bec7-08002be2092f} /// Keyboard：{4d36e96b-e325-11ce-bfc1-08002be10318} /// Mouse：{4d36e96f-e325-11ce-bfc1-08002be10318} /// Network Adapter：{4d36e972-e325-11ce-bfc1-08002be10318} /// USB：{36fc9e60-c465-11cf-8056-444553540000} /// </remarks> public static PnPEntityInfo[] WhoPnPEntity(UInt16 VendorID, UInt16 ProductID, Guid ClassGuid) { List<PnPEntityInfo> PnPEntities = new List<PnPEntityInfo>(); // 枚举即插即用设备实体 String VIDPID; if (VendorID == UInt16.MinValue) { if (ProductID == UInt16.MinValue) VIDPID = "'%VID[_]____&PID[_]____%'"; else VIDPID = "'%VID[_]____&PID[_]" + ProductID.ToString("X4") + "%'"; } else { if (ProductID == UInt16.MinValue) VIDPID = "'%VID[_]" + VendorID.ToString("X4") + "&PID[_]____%'"; else VIDPID = "'%VID[_]" + VendorID.ToString("X4") + "&PID[_]" + ProductID.ToString("X4") + "%'"; } String QueryString; if (ClassGuid == Guid.Empty) QueryString = "SELECT * FROM Win32_PnPEntity WHERE PNPDeviceID LIKE" + VIDPID; else QueryString = "SELECT * FROM Win32_PnPEntity WHERE PNPDeviceID LIKE" + VIDPID + " AND ClassGuid='" + ClassGuid.ToString("B") + "'"; ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher(QueryString).Get(); if (PnPEntityCollection != null) { foreach (ManagementObject Entity in PnPEntityCollection) { String PNPDeviceID = Entity["PNPDeviceID"] as String; Match match = Regex.Match(PNPDeviceID, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}"); if (match.Success) { PnPEntityInfo Element; Element.PNPDeviceID = PNPDeviceID; // 设备ID Element.Name = Entity["Name"] as String; // 设备名称 Element.Description = Entity["Description"] as String; // 设备描述 Element.Service = Entity["Service"] as String; // 服务 Element.Status = Entity["Status"] as String; // 设备状态 Element.VendorID = Convert.ToUInt16(match.Value.Substring(4, 4), 16); // 供应商标识 Element.ProductID = Convert.ToUInt16(match.Value.Substring(13, 4), 16); // 产品编号 Element.ClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID PnPEntities.Add(Element); } } } if (PnPEntities.Count == 0) return null; else return PnPEntities.ToArray(); } /// <summary> /// 根据VID和PID定位即插即用设备实体 /// </summary> /// <param name="VendorID">供应商标识，MinValue忽视</param> /// <param name="ProductID">产品编号，MinValue忽视</param> /// <returns>设备列表</returns> public static PnPEntityInfo[] WhoPnPEntity(UInt16 VendorID, UInt16 ProductID) { return WhoPnPEntity(VendorID, ProductID, Guid.Empty); } /// <summary> /// 根据设备安装类GUID定位即插即用设备实体 /// </summary> /// <param name="ClassGuid">设备安装类Guid，Empty忽视</param> /// <returns>设备列表</returns> public static PnPEntityInfo[] WhoPnPEntity(Guid ClassGuid) { return WhoPnPEntity(UInt16.MinValue, UInt16.MinValue, ClassGuid); } /// <summary> /// 根据设备ID定位设备 /// </summary> /// <param name="PNPDeviceID">设备ID，可以是不完整信息</param> /// <returns>设备列表</returns> /// <remarks> /// 注意：对于下划线，需要写成“[_]”，否则视为任意字符 /// </remarks> public static PnPEntityInfo[] WhoPnPEntity(String PNPDeviceID) { List<PnPEntityInfo> PnPEntities = new List<PnPEntityInfo>(); // 枚举即插即用设备实体 String QueryString; if (String.IsNullOrEmpty(PNPDeviceID)) { QueryString = "SELECT * FROM Win32_PnPEntity WHERE PNPDeviceID LIKE '%VID[_]____&PID[_]____%'"; } else { // LIKE子句中有反斜杠字符将会引发WQL查询异常 QueryString = "SELECT * FROM Win32_PnPEntity WHERE PNPDeviceID LIKE '%" + PNPDeviceID.Replace('\', '_') + "%'"; } ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher(QueryString).Get(); if (PnPEntityCollection != null) { foreach (ManagementObject Entity in PnPEntityCollection) { String thePNPDeviceID = Entity["PNPDeviceID"] as String; Match match = Regex.Match(thePNPDeviceID, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}"); if (match.Success) { PnPEntityInfo Element; Element.PNPDeviceID = thePNPDeviceID; // 设备ID Element.Name = Entity["Name"] as String; // 设备名称 Element.Description = Entity["Description"] as String; // 设备描述 Element.Service = Entity["Service"] as String; // 服务 Element.Status = Entity["Status"] as String; // 设备状态 Element.VendorID = Convert.ToUInt16(match.Value.Substring(4, 4), 16); // 供应商标识 Element.ProductID = Convert.ToUInt16(match.Value.Substring(13, 4), 16); // 产品编号 Element.ClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID PnPEntities.Add(Element); } } } if (PnPEntities.Count == 0) return null; else return PnPEntities.ToArray(); } /// <summary> /// 根据服务定位设备 /// </summary> /// <param name="ServiceCollection">要查询的服务集合，null忽视</param> /// <returns>设备列表</returns> /// <remarks> /// 跟服务相关的类： /// Win32_SystemDriverPNPEntity /// Win32_SystemDriver /// </remarks> public static PnPEntityInfo[] WhoPnPEntity(String[] ServiceCollection) { if (ServiceCollection == null || ServiceCollection.Length == 0) return WhoPnPEntity(UInt16.MinValue, UInt16.MinValue, Guid.Empty); List<PnPEntityInfo> PnPEntities = new List<PnPEntityInfo>(); // 枚举即插即用设备实体 String QueryString = "SELECT * FROM Win32_PnPEntity WHERE PNPDeviceID LIKE '%VID[_]____&PID[_]____%'"; ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher(QueryString).Get(); if (PnPEntityCollection != null) { foreach (ManagementObject Entity in PnPEntityCollection) { String PNPDeviceID = Entity["PNPDeviceID"] as String; Match match = Regex.Match(PNPDeviceID, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}"); if (match.Success) { String theService = Entity["Service"] as String; // 服务 if (String.IsNullOrEmpty(theService)) continue; foreach (String Service in ServiceCollection) { // 注意：忽视大小写 if (String.Compare(theService, Service, true) != 0) continue; PnPEntityInfo Element; Element.PNPDeviceID = PNPDeviceID; // 设备ID Element.Name = Entity["Name"] as String; // 设备名称 Element.Description = Entity["Description"] as String; // 设备描述 Element.Service = theService; // 服务 Element.Status = Entity["Status"] as String; // 设备状态 Element.VendorID = Convert.ToUInt16(match.Value.Substring(4, 4), 16); // 供应商标识 Element.ProductID = Convert.ToUInt16(match.Value.Substring(13, 4), 16); // 产品编号 Element.ClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID PnPEntities.Add(Element); break; } } } } if (PnPEntities.Count == 0) return null; else return PnPEntities.ToArray(); } #endregion }}通过API的方式详见
http://www.cnblogs.com/xidongs/archive/2011/11/28/2266100.html