C#:USB Device Enumeration (i) PInvoke of DeviceIoControl

 

/*----------------------------------------------------------file name: DeviceIoControl.cs Author: Qin Jianhui msn:splashcn@msn.com qq:36748897 Blog: http://blog.csdn.net/jhqin development environment: Visual Studio V2010. NET Framework 4 Client Profile version history: V 1.0 October 10, 2011 Implementation of the DeviceIoControl Interface PInvoke reference: http://www.pinvoke.net/---------------------------------------
---------------------*/using System;

Using System.Runtime.InteropServices; 
    Namespace Splash.IO.PORTS {#region enum public enum Usb_hub_node:uint {UsbHub, usbmiparent public enum Usb_connection_status {nodeviceconnected, deviceconnected, Devicefail Edenumeration, Devicegeneralfailure, Devicecausedovercurrent, Devicenotenoughpower, Device Notenoughbandwidth, devicehubnestedtoodeeply, deviceinlegacyhub} public enum Usb_device_speed: byte {usblowspeed,//Low Speed USB 1.1 usbfullspeed,// Full Speed USB 1.1 usbhighspeed,//High Speed USB 2.0 usbsuperspeed//Speed USB 3.0} #endregion public part
        Ial class USB {Internal const Int32 ioctl_get_hcd_driverkey_name = 0x220424;
        Internal const Int32 Ioctl_usb_get_root_hub_name = 0x220408;
        Internal const Int32 Ioctl_usb_get_node_connection_name = 0x220414;
        Internal const Int32 ioctl_usb_get_node_information = 0x220408;
        Internal const Int32 IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX = 0x220448;

        Internal const Int32 ioctl_usb_get_descriptor_from_node_connection = 0x220410;
        Internal const INT32 Maximum_usb_string_length = 255;

        Internal const INT32 Usb_string_descriptor_type = 3;
            [StructLayout (layoutkind.sequential, CharSet = charset.auto)] internal struct Usb_hcd_driverkey_name {
            Public Int32 actuallength;
        [MarshalAs (UnmanagedType.ByValTStr, SizeConst = 256)] public String Name; }

        #region Usb_node_information [StructLayout (layoutkind.sequential, Pack = 1)] internal struct USB
            _hub_descriptor {public Byte bdescriptorlength;    Public Byte bDescriptorType;     Descriptor type: 0x29 public Byte bnumberofports;   Number of downstream ports supported public Int16 Whubcharacteristics;    Feature description public Byte Bpowerontopowergood;     The time interval (in 2ms) from the port to power the port to work normally is public Byte bhubcontrolcurrent; Maximum current required for the device [MarshalAs (UnmanagedType.ByValArray, SizeConst =)] public byte[] Bremoveandpowermas  K 
        Indicates whether the device attached to the hub port can be moved} [StructLayout (layoutkind.sequential)] internal struct usb_hub_information
            {public Usb_hub_descriptor hubdescriptor;
        Public Byte hubisbuspowered; [StructLayout (layoutkind.sequential)] internal struct Usb_mi_parent_information {p Ublic Int32 NumberofinterfaceS
        
        };
            [StructLayout (layoutkind.explicit)] internal struct Usbnodeunion {[FieldOffset (0)]
            Public Usb_hub_information hubinformation;
        [FieldOffset (0)] public usb_mi_parent_information miparentinformation;  [StructLayout (layoutkind.sequential)] internal struct Usb_node_information {public
            Usb_hub_node NodeType;
        Public usbnodeunion u; } #endregion #region Usb_node_connection_information [StructLayout (layoutkind.sequential, Pack =
            1)] Internal struct Usb_device_descriptor {public Byte blength;
            Public Byte bDescriptorType;
            Public UInt16 Bcdusb;
            Public Byte Bdeviceclass;
            Public Byte Bdevicesubclass;
            Public Byte Bdeviceprotocol;
            Public Byte bMaxPacketSize0;
            Public UInt16 Idvendor; Public UIntIdproduct;
            Public UInt16 Bcddevice;
            Public Byte Imanufacturer;
            Public Byte iproduct;
            Public Byte Iserialnumber;
        Public Byte bnumconfigurations;
        [StructLayout (layoutkind.sequential, Pack = 1)] internal struct usb_endpoint_descriptor
            {public Byte blength;
            Public Byte bDescriptorType;
            Public Byte bendpointaddress;
            Public Byte bmattributes;
            Public UInt16 wmaxpacketsize;
        Public Byte Binterval; [StructLayout (layoutkind.sequential, Pack = 1)] internal struct Usb_pipe_info {pub
            Lic Usb_endpoint_descriptor Endpointdescriptor;
        Public UInt32 Scheduleoffset;
        [StructLayout (layoutkind.sequential, Pack = 1)] internal struct USB_NODE_CONNECTION_INFORMATION_EX
            {public Int32 connectionindex; Public Usb_device_deScriptor Devicedescriptor;
            Public Byte Currentconfigurationvalue;
            Public Byte Speed;
            Public Byte Deviceishub;
            Public Int16 deviceaddress;
            Public Int32 numberofopenpipes;
            Public Usb_connection_status Connectionstatus;
        [MarshalAs (UnmanagedType.ByValArray, SizeConst =)] public usb_pipe_info[] pipelist; } #endregion #region Usb_descriptor_request [StructLayout (layoutkind.sequential)] Interna
            l struct Usb_setup_packet {public Byte bmrequest;
            Public Byte brequest;
            Public UInt16 Wvalue;
            Public UInt16 Windex;
        Public UInt16 wlength;
        } [StructLayout (layoutkind.sequential, CharSet = charset.auto)] internal struct
            {public Byte blength;
            Public Byte bDescriptorType; [MarshalAs (UnmanagedType.ByValTStr, SizEconst = maximum_usb_string_length)] public STRING bstring; [StructLayout (layoutkind.sequential)] internal struct Usb_descriptor_request {Publ
            IC Int32 Connectionindex;       
            Public Usb_setup_packet Setuppacket;
        Public Usb_string_descriptor Data; #endregion #region Usb_node_connection_driverkey_name [StructLayout (LayoutKind.Sequential, Char Set = CharSet.Auto)] Internal struct Usb_node_connection_driverkey_name {public Int32 Connect
            Ionindex;
            Public Int32 actuallength;
        [MarshalAs (UnmanagedType.ByValTStr, SizeConst = maximum_usb_string_length)] public STRING driverkeyname; #endregion #region DeviceIoControl [DllImport ("kernel32.dll", CharSet = CharSet.Ansi, Setla Sterror = true)] internal static extern Boolean DeviceIoControl (IntPtr hfile, inT32 Dwiocontrolcode, IntPtr lpinbuffer, Int32 ninbuffersize, ref Usb_hcd_driverkey_nam
            E lpOutBuffer, Int32 noutbuffersize, out Int32 nbytesreturned, IntPtr lpoverlapped

        ); [DllImport ("kernel32.dll", CharSet = CharSet.Ansi, SetLastError = true)] internal static extern Boolean Deviceioco
            Ntrol (IntPtr hfile, Int32 dwiocontrolcode, ref usb_node_information Lpinbuffer,
            Int32 ninbuffersize, ref usb_node_information lpOutBuffer, Int32 noutbuffersize,

        Out Int32 lpbytesreturned, IntPtr lpoverlapped); [DllImport ("kernel32.dll", CharSet = CharSet.Ansi, SetLastError = true)] internal static extern Boolean Deviceioco Ntrol (IntPtr hfile, Int32 dwiocontrolcode, ref USB_NODE_CONNECTION_INFORMATION_EX LpI Nbuffer, Int32 ninbuffersize, ref USB_NODE_CONNECTION_INFORMATION_EX lpOutBuffer, Int32 noutbuffersize, out Int32

        lpbytesreturned, IntPtr lpoverlapped); [DllImport ("kernel32.dll", CharSet = CharSet.Ansi, SetLastError = true)] internal static extern Boolean Deviceioco
            Ntrol (IntPtr hfile, Int32 dwiocontrolcode, ref usb_descriptor_request Lpinbuffer,
            Int32 ninbuffersize, ref usb_descriptor_request lpOutBuffer, Int32 noutbuffersize,

        Out Int32 lpbytesreturned, IntPtr lpoverlapped); [DllImport ("kernel32.dll", CharSet = CharSet.Ansi, SetLastError = true)] internal static extern Boolean Deviceioco Ntrol (IntPtr hfile, Int32 dwiocontrolcode, ref usb_node_connection_driverkey_name LpI
Nbuffer, Int32 ninbuffersize, ref usb_node_connection_driverkey_name lpOutBuffer,            Int32 noutbuffersize, out Int32 lpbytesreturned, IntPtr lpoverlapped);
 #endregion}}