private static bool BuildMasterCallback(IntPtr deviceInfoSet, int deviceindex, ref SetupApi.SP_DEVINFO_DATA deviceInfoData, object userData) { MasterList deviceList = userData as MasterList; MasterItem deviceItem = new MasterItem(); StringBuilder sb = new StringBuilder(256); if (SetupApi.CM_Get_Device_ID(deviceInfoData.DevInst, sb, sb.Capacity, 0) != SetupApi.CR.SUCCESS) { return(false); } deviceItem.Add(DEVICE_ID_KEY, sb.ToString()); deviceList.Add(deviceItem); RegistryValueKind propertyType; byte[] propBuffer = new byte[256]; int requiredSize; bool bSuccess = SetupApi.SetupDiGetCustomDeviceProperty(deviceInfoSet, ref deviceInfoData, UsbRegistry.DEVICE_INTERFACE_GUIDS, SetupApi.DICUSTOMDEVPROP.NONE, out propertyType, propBuffer, propBuffer.Length, out requiredSize); if (bSuccess) { string[] devInterfaceGuids = UsbRegistry.GetAsStringArray(propBuffer, requiredSize); deviceItem.Add(UsbRegistry.DEVICE_INTERFACE_GUIDS, devInterfaceGuids); foreach (string s in devInterfaceGuids) { Guid g = new Guid(s); List <string> devicePathList; if (WinUsb.WinUsbRegistry.GetDevicePathList(g, out devicePathList)) { deviceItem.DevicePaths.Add(g, devicePathList); } } } else { bSuccess = SetupApi.SetupDiGetCustomDeviceProperty(deviceInfoSet, ref deviceInfoData, UsbRegistry.LIBUSB_INTERFACE_GUIDS, SetupApi.DICUSTOMDEVPROP.NONE, out propertyType, propBuffer, propBuffer.Length, out requiredSize); if (bSuccess) { string[] devInterfaceGuids = UsbRegistry.GetAsStringArray(propBuffer, requiredSize); deviceItem.Add(UsbRegistry.LIBUSB_INTERFACE_GUIDS, devInterfaceGuids); } } bSuccess = SetupApi.SetupDiGetCustomDeviceProperty(deviceInfoSet, ref deviceInfoData, UsbRegistry.SYMBOLIC_NAME_KEY, SetupApi.DICUSTOMDEVPROP.NONE, out propertyType, propBuffer, propBuffer.Length, out requiredSize); if (bSuccess) { string symbolicName = UsbRegistry.GetAsString(propBuffer, requiredSize); deviceItem.Add(UsbRegistry.SYMBOLIC_NAME_KEY, symbolicName); } SetupApi.getSPDRPProperties(deviceInfoSet, ref deviceInfoData, deviceItem); return(false); }