예제 #1
0
    private void initDevice(string devicePath)
    {
        deviceConnected = false;

        //create file handles using CT_CreateFile
        handle = Kernel32.CreateFile(devicePath, Kernel32.GENERIC_READ | Kernel32.GENERIC_WRITE, Kernel32.FILE_SHARE_READ | Kernel32.FILE_SHARE_WRITE, IntPtr.Zero, Kernel32.OPEN_EXISTING, 0, IntPtr.Zero);

        //get capabilites - use getPreParsedData, and getCaps
        //store the reportlengths
        IntPtr ptrToPreParsedData = new IntPtr();

        HID.HidD_GetPreparsedData(handle, ref ptrToPreParsedData);

        capabilities = new HIDP_CAPS();
        HID.HidP_GetCaps(ptrToPreParsedData, ref capabilities);

        HIDD_ATTRIBUTES attributes = new HIDD_ATTRIBUTES();

        HID.HidD_GetAttributes(handle, ref attributes);

        string productName = "";
        string SN          = "";
        string manfString  = "";
        IntPtr buffer      = Marshal.AllocHGlobal(126);//max alloc for string;

        if (HID.HidD_GetProductString(handle, buffer, 126))
        {
            productName = Marshal.PtrToStringAuto(buffer);
        }
        if (HID.HidD_GetSerialNumberString(handle, buffer, 126))
        {
            SN = Marshal.PtrToStringAuto(buffer);
        }
        if (HID.HidD_GetManufacturerString(handle, buffer, 126))
        {
            manfString = Marshal.PtrToStringAuto(buffer);
        }
        Marshal.FreeHGlobal(buffer);

        //Call freePreParsedData to release some stuff
        HID.HidD_FreePreparsedData(ref ptrToPreParsedData);

        if (handle.IsInvalid)
        {
            return;
        }

        deviceConnected = true;

        //If connection was sucsessful, record the values in a global struct
        productInfo                      = new InterfaceDetails();
        productInfo.devicePath           = devicePath;
        productInfo.manufacturer         = manfString;
        productInfo.product              = productName;
        productInfo.serialNumber         = SN;
        productInfo.PID                  = (ushort)attributes.ProductID;
        productInfo.VID                  = (ushort)attributes.VendorID;
        productInfo.versionNumber        = (ushort)attributes.VersionNumber;
        productInfo.IN_reportByteLength  = (int)capabilities.InputReportByteLength;
        productInfo.OUT_reportByteLength = (int)capabilities.OutputReportByteLength;
    }
예제 #2
0
    public static InterfaceDetails[] getConnectedDevices()
    {
        InterfaceDetails[] devices = new InterfaceDetails[0];

        //Create structs to hold interface information
        SP_DEVINFO_DATA          devInfo  = new SP_DEVINFO_DATA();
        SP_DEVICE_INTERFACE_DATA devIface = new SP_DEVICE_INTERFACE_DATA();

        devInfo.cbSize  = (uint)Marshal.SizeOf(devInfo);
        devIface.cbSize = (uint)(Marshal.SizeOf(devIface));

        Guid G = new Guid();

        HID.HidD_GetHidGuid(ref G); //Get the guid of the HID device class

        IntPtr i = SetupAPI.SetupDiGetClassDevs(ref G, IntPtr.Zero, IntPtr.Zero, SetupAPI.DIGCF_DEVICEINTERFACE | SetupAPI.DIGCF_PRESENT);

        //Loop through all available entries in the device list, until false
        SP_DEVICE_INTERFACE_DETAIL_DATA didd = new SP_DEVICE_INTERFACE_DETAIL_DATA();

        if (IntPtr.Size == 8) // for 64 bit operating systems
        {
            didd.cbSize = 8;
        }
        else
        {
            didd.cbSize = 4 + Marshal.SystemDefaultCharSize;             // for 32 bit systems
        }

        int            j = -1;
        bool           b = true;
        SafeFileHandle tempHandle;

        while (b)
        {
            ++j;
            b = SetupAPI.SetupDiEnumDeviceInterfaces(i, IntPtr.Zero, ref G, (uint)j, ref devIface);
            if (b == false)
            {
                break;
            }

            uint requiredSize = 0;
            SetupAPI.SetupDiGetDeviceInterfaceDetail(i, ref devIface, ref didd, 256, out requiredSize, ref devInfo);
            string devicePath = didd.DevicePath;

            //create file handles using CT_CreateFile
            tempHandle = Kernel32.CreateFile(devicePath, Kernel32.GENERIC_READ | Kernel32.GENERIC_WRITE, Kernel32.FILE_SHARE_READ | Kernel32.FILE_SHARE_WRITE,
                                             IntPtr.Zero, Kernel32.OPEN_EXISTING, 0, IntPtr.Zero);

            //get capabilites - use getPreParsedData, and getCaps
            //store the reportlengths
            IntPtr ptrToPreParsedData = new IntPtr();
            bool   ppdSucsess         = HID.HidD_GetPreparsedData(tempHandle, ref ptrToPreParsedData);
            if (ppdSucsess == false)
            {
                continue;
            }

            HIDP_CAPS capabilities = new HIDP_CAPS();
            HID.HidP_GetCaps(ptrToPreParsedData, ref capabilities);

            HIDD_ATTRIBUTES attributes = new HIDD_ATTRIBUTES();
            HID.HidD_GetAttributes(tempHandle, ref attributes);

            string productName = "";
            string SN          = "";
            string manfString  = "";
            IntPtr buffer      = Marshal.AllocHGlobal(126);//max alloc for string;
            if (HID.HidD_GetProductString(tempHandle, buffer, 126))
            {
                productName = Marshal.PtrToStringAuto(buffer);
            }
            if (HID.HidD_GetSerialNumberString(tempHandle, buffer, 126))
            {
                SN = Marshal.PtrToStringAuto(buffer);
            }
            if (HID.HidD_GetManufacturerString(tempHandle, buffer, 126))
            {
                manfString = Marshal.PtrToStringAuto(buffer);
            }
            Marshal.FreeHGlobal(buffer);

            //Call freePreParsedData to release some stuff
            HID.HidD_FreePreparsedData(ref ptrToPreParsedData);

            //If connection was sucsessful, record the values in a global struct
            InterfaceDetails productInfo = new InterfaceDetails();
            productInfo.devicePath           = devicePath;
            productInfo.manufacturer         = manfString;
            productInfo.product              = productName;
            productInfo.PID                  = (ushort)attributes.ProductID;
            productInfo.VID                  = (ushort)attributes.VendorID;
            productInfo.versionNumber        = (ushort)attributes.VersionNumber;
            productInfo.IN_reportByteLength  = (int)capabilities.InputReportByteLength;
            productInfo.OUT_reportByteLength = (int)capabilities.OutputReportByteLength;
            productInfo.serialNumber         = SN; //Check that serial number is actually a number

            int newSize = devices.Length + 1;
            Array.Resize(ref devices, newSize);
            devices[newSize - 1] = productInfo;
        }
        SetupAPI.SetupDiDestroyDeviceInfoList(i);

        return(devices);
    }
예제 #3
0
    public static InterfaceDetails[] getConnectedDevices()
    {
        InterfaceDetails[] devices = new InterfaceDetails[0];

        //Create structs to hold interface information
        SP_DEVINFO_DATA devInfo = new SP_DEVINFO_DATA();

        devInfo.cbSize = (uint)Marshal.SizeOf(devInfo);
        SP_DEVICE_INTERFACE_DATA devIface = new SP_DEVICE_INTERFACE_DATA();

        devIface.cbSize = (uint)(Marshal.SizeOf(devIface));

        Guid G = Guid.Empty;

        HID.HidD_GetHidGuid(ref G); //Get the guid of the HID device class

        IntPtr deviceInfo = SetupAPI.SetupDiGetClassDevs(ref G, IntPtr.Zero, IntPtr.Zero, SetupAPI.DIGCF_DEVICEINTERFACE | SetupAPI.DIGCF_PRESENT);
        //Loop through all available entries in the device list, until false
        int j = 0;

        while (true)
        {
            if (!SetupAPI.SetupDiEnumDeviceInterfaces(deviceInfo, IntPtr.Zero, ref G, (uint)j, ref devIface))
            {
                break;
            }
            uint   requiredSize = 0;
            IntPtr detailMemory = Marshal.AllocHGlobal((int)requiredSize);
            SP_DEVICE_INTERFACE_DETAIL_DATA functionClassDeviceData = (SP_DEVICE_INTERFACE_DETAIL_DATA)Marshal.PtrToStructure(detailMemory, Typeof <SP_DEVICE_INTERFACE_DETAIL_DATA>());
            functionClassDeviceData.cbSize = Marshal.SizeOf(functionClassDeviceData);
            if (!SetupAPI.SetupDiGetDeviceInterfaceDetail(deviceInfo, ref devIface, ref functionClassDeviceData, requiredSize, out requiredSize, ref devInfo))
            {
                Marshal.FreeHGlobal(detailMemory);
                break;
            }
            string devicePath = functionClassDeviceData.DevicePath;
            Marshal.FreeHGlobal(detailMemory);

            //create file handles using CT_CreateFile
            uint           desiredAccess = Kernel32.GENERIC_READ | Kernel32.GENERIC_WRITE;
            uint           shareMode     = Kernel32.FILE_SHARE_READ | Kernel32.FILE_SHARE_WRITE;
            SafeFileHandle tempHandle    = Kernel32.CreateFile(devicePath, desiredAccess, shareMode,
                                                               IntPtr.Zero, Kernel32.OPEN_EXISTING, 0, IntPtr.Zero);
            //get capabilites - use getPreParsedData, and getCaps
            //store the reportlengths
            IntPtr ptrToPreParsedData = new IntPtr();
            bool   ppdSucsess         = HID.HidD_GetPreparsedData(tempHandle, ref ptrToPreParsedData);
            if (!ppdSucsess)
            {
                continue;
            }

            HIDP_CAPS capability = new HIDP_CAPS();
            HID.HidP_GetCaps(ptrToPreParsedData, ref capability);

            HIDD_ATTRIBUTES attributes = new HIDD_ATTRIBUTES();
            HID.HidD_GetAttributes(tempHandle, ref attributes);

            string    productName = EMPTY;
            string    SN          = EMPTY;
            string    manfString  = EMPTY;
            const int bufferLen   = 128;
            IntPtr    buffer      = Marshal.AllocHGlobal(bufferLen);
            if (HID.HidD_GetProductString(tempHandle, buffer, bufferLen))
            {
                productName = Marshal.PtrToStringAuto(buffer);
            }
            if (HID.HidD_GetSerialNumberString(tempHandle, buffer, bufferLen))
            {
                SN = Marshal.PtrToStringAuto(buffer);
            }
            if (HID.HidD_GetManufacturerString(tempHandle, buffer, bufferLen))
            {
                manfString = Marshal.PtrToStringAuto(buffer);
            }
            Marshal.FreeHGlobal(buffer);

            //Call freePreParsedData to release some stuff
            HID.HidD_FreePreparsedData(ref ptrToPreParsedData);

            //If connection was sucsessful, record the values in a global struct
            InterfaceDetails productInfo = new InterfaceDetails();
            productInfo.devicePath           = devicePath;
            productInfo.manufacturer         = manfString;
            productInfo.product              = productName;
            productInfo.PID                  = (ushort)attributes.ProductID;
            productInfo.VID                  = (ushort)attributes.VendorID;
            productInfo.versionNumber        = (ushort)attributes.VersionNumber;
            productInfo.IN_reportByteLength  = capability.InputReportByteLength;
            productInfo.OUT_reportByteLength = capability.OutputReportByteLength;
            productInfo.serialNumber         = SN; //Check that serial number is actually a number

            int newSize = devices.Length + 1;
            Array.Resize(ref devices, newSize);
            devices[newSize - 1] = productInfo;
            ++j;
        }
        SetupAPI.SetupDiDestroyDeviceInfoList(deviceInfo);
        return(devices);
    }