/// <summary>
/// Get Result Of Latest CMD.
/// </summary>
/// <param name="inPipe">1 For CMD Response and 0 for Image Data.</param>
/// <returns></returns>
private async Task <byte[]> GetResults(int inPipe = 1)
{
//Config
UsbBulkInPipe readPipe = _targetDevice.DefaultInterface.BulkInPipes[inPipe];
readPipe.ReadOptions |= UsbReadOptions.IgnoreShortPacket;
//Setup stream.
var stream = readPipe.InputStream;
DataReader reader = new DataReader(stream);
uint bytesRead = 0;
try
{
bytesRead = await reader.LoadAsync(readPipe.EndpointDescriptor.MaxPacketSize);
}
catch (Exception exception)
{
Debug.WriteLine(exception.Message);
}
//Get buffer
IBuffer buffer = reader.ReadBuffer(bytesRead);
var result = buffer.ToArray();
//Change result depending on size.
var size = BitConverter.ToUInt32(result, 1);
if (size > result.Count())
{
//We need to actually get more data.
while (size >= result.Count())
{
bytesRead = await reader.LoadAsync(readPipe.EndpointDescriptor.MaxPacketSize);
buffer = reader.ReadBuffer(bytesRead);
var newRes = ConcatArrays(result, buffer.ToArray());
result = newRes;
}
}
//Remove padded zeros and return.
if (size < result.Count())
{
return(result.Take((int)size).ToArray());
}
return(result);
}
private async void OnDeviceAdded(DeviceWatcher watcher, DeviceInformation deviceInformation)
{
if (deviceInformation.Name.StartsWith("acA1920-40um") && deviceInformation.IsEnabled)
{
_targetDevice = await UsbDevice.FromIdAsync(deviceInformation.Id);
foreach (var interf in _targetDevice.Configuration.UsbInterfaces)
{
if (interf.InterfaceNumber == 0)
{
_controlInPipe = interf.BulkInPipes[0];
_controlOutPipe = interf.BulkOutPipes[0];
}
else if (interf.InterfaceNumber == 2)
_streamInPipe = interf.BulkInPipes[0];
}
OnConnected(EventArgs.Empty);
}
}
public async Task <bool> OpenAsync()
{
if (IsOpen)
{
return(true); // we're already open
}
// Calling this will "open" the device, blocking any other app from using it.
// This will return null if another program already has the device open.
usbDevice = await UsbDevice.FromIdAsync(DevicePath);
if (usbDevice == null)
{
return(false);
}
cts = new CancellationTokenSource();
// https://msdn.microsoft.com/en-us/library/windows/hardware/dn303346(v=vs.85).aspx
Version = (ushort)usbDevice.DeviceDescriptor.BcdDeviceRevision;
pinConfigPipe = usbDevice.DefaultInterface.BulkOutPipes[0];
peripheralOutPipe = usbDevice.DefaultInterface.BulkOutPipes[1];
pinConfigWriter = new DataWriter(pinConfigPipe.OutputStream);
peripheralWriter = new DataWriter(peripheralOutPipe.OutputStream);
pinEventPipe = usbDevice.DefaultInterface.BulkInPipes[0];
pinEventReader = new DataReader(pinEventPipe.InputStream);
peripheralInPipe = usbDevice.DefaultInterface.BulkInPipes[1];
peripheralReader = new DataReader(peripheralInPipe.InputStream);
IsOpen = true;
pinEventListerner(cts.Token);
Debug.WriteLine("Connection opened");
return(true);
}
public async Task<bool> OpenAsync()
{
if (IsOpen)
return true; // we're already open
// Calling this will "open" the device, blocking any other app from using it.
// This will return null if another program already has the device open.
this.usbDevice = await UsbDevice.FromIdAsync(DevicePath);
if (this.usbDevice == null)
return false;
cts = new CancellationTokenSource();
// https://msdn.microsoft.com/en-us/library/windows/hardware/dn303346(v=vs.85).aspx
Version = (short)usbDevice.DeviceDescriptor.BcdDeviceRevision;
pinConfigPipe = usbDevice.DefaultInterface.BulkOutPipes[0];
pinConfigPipe.WriteOptions |= UsbWriteOptions.ShortPacketTerminate;
peripheralOutPipe = usbDevice.DefaultInterface.BulkOutPipes[1];
peripheralOutPipe.WriteOptions |= UsbWriteOptions.ShortPacketTerminate;
pinConfigWriter = new DataWriter(pinConfigPipe.OutputStream);
peripheralWriter = new DataWriter(peripheralOutPipe.OutputStream);
pinEventPipe = usbDevice.DefaultInterface.BulkInPipes[0];
pinEventReader = new DataReader(pinEventPipe.InputStream);
peripheralInPipe = usbDevice.DefaultInterface.BulkInPipes[1];
peripheralReader = new DataReader(peripheralInPipe.InputStream);
isOpen = true;
pinEventListerner(cts.Token);
Debug.WriteLine("Connection opened");
return true;
}