Banshee.Dap.Mtp.MtpSource.DeviceInitialize C# (CSharp) Method

        public override void DeviceInitialize (IDevice device)
        {
            base.DeviceInitialize (device);

            var portInfo = device.ResolveUsbPortInfo ();
            if (portInfo == null || portInfo.DeviceNumber == 0) {
                throw new InvalidDeviceException ();
            }

            //int busnum = portInfo.BusNumber;
            int devnum = portInfo.DeviceNumber;

            List<RawMtpDevice> devices = null;
            try {
                devices = MtpDevice.Detect ();
            } catch (TypeInitializationException e) {
                Log.Exception (e);
                Log.Error (
                    Catalog.GetString ("Error Initializing MTP Device Support"),
                    Catalog.GetString ("There was an error intializing MTP device support.  See http://www.banshee-project.org/Guide/DAPs/MTP for more information."), true
                );
                throw new InvalidDeviceException ();
            } catch (Exception e) {
                Log.Exception (e);
                //ShowGeneralExceptionDialog (e);
                throw new InvalidDeviceException ();
            }

            IVolume volume = device as IVolume;
            foreach (var v in devices) {
                // Using the HAL hardware backend, HAL says the busnum is 2, but libmtp says it's 0, so disabling that check
                //if (v.BusNumber == busnum && v.DeviceNumber == devnum) {
                if (v.DeviceNumber == devnum) {
                    // If gvfs-gphoto has it mounted, unmount it
                    if (volume != null && volume.IsMounted) {
                        volume.Unmount ();
                    }

                    for (int i = 5; i > 0 && mtp_device == null; i--) {
                        try {
                            mtp_device = MtpDevice.Connect (v);
                        } catch (Exception) {}

                        if (mtp_device == null) {
                            Log.DebugFormat ("Failed to connect to mtp device. Trying {0} more times...", i - 1);
                            Thread.Sleep (2000);
                        }
                    }
                }
            }

            if (mtp_device == null) {
                throw new InvalidDeviceException ();
            }

            // libmtp sometimes returns '?????'. I assume this is if the device does
            // not supply a friendly name. In this case show the model name.
            if (string.IsNullOrEmpty (mtp_device.Name) || mtp_device.Name == "?????")
                Name = mtp_device.ModelName;
            else
                Name = mtp_device.Name;

            Initialize ();

            List<string> mimetypes = new List<string> ();
            foreach (FileType format in mtp_device.GetFileTypes ()) {
                if (format == FileType.JPEG) {
                    supports_jpegs = true;
                } else {
                    string mimetype = MtpDevice.GetMimeTypeFor (format);
                    if (mimetype != null) {
                        mimetypes.Add (mimetype);
                    }
                }
            }
            AcceptableMimeTypes = mimetypes.ToArray ();

            AddDapProperty (Catalog.GetString ("Serial number"), mtp_device.SerialNumber);
            AddDapProperty (Catalog.GetString ("Version"), mtp_device.Version);
            try {
                AddDapProperty (Catalog.GetString ("Battery level"), String.Format ("{0:0%}", mtp_device.BatteryLevel/100.0));
            } catch (Exception e) {
                Log.Exception ("Unable to get battery level from MTP device", e);
            }
        }