/// <summary>
/// Open the connection
/// </summary>
public override void Open()
{
bool hasError = false;
try
{
int r = 0;
sessionHandle = new MonoLibUsb.MonoUsbSessionHandle();
if (sessionHandle.IsInvalid)
{
hasError = true;
}
deviceHandle = MonoLibUsb.MonoUsbApi.OpenDeviceWithVidPid(sessionHandle, settings.VendorId, settings.ProductId);
if ((deviceHandle == null) || deviceHandle.IsInvalid)
{
hasError = true;
}
if (type == BrickType.NXT)
{
if (resetDvice)
{
MonoLibUsb.MonoUsbApi.ResetDevice(deviceHandle);
deviceHandle.Close();
deviceHandle = MonoLibUsb.MonoUsbApi.OpenDeviceWithVidPid(sessionHandle, settings.VendorId, settings.ProductId);
if ((deviceHandle == null) || deviceHandle.IsInvalid)
{
hasError = true;
}
}
// Set configuration
r = MonoLibUsb.MonoUsbApi.SetConfiguration(deviceHandle, settings.Configuration);
if (r != 0)
{
hasError = true;
}
}
else
{
MonoLibUsb.MonoUsbApi.DetachKernelDriver(deviceHandle, settings.Interface);
}
// Claim interface
r = MonoLibUsb.MonoUsbApi.ClaimInterface(deviceHandle, settings.Interface);
if (r != 0)
{
hasError = true;
}
}
catch {
throw new ConnectionException(ConnectionError.OpenError);
}
if (hasError)
{
throw new ConnectionException(ConnectionError.OpenError);
}
isConnected = true;
ConnectionWasOpened();
}
/// <summary>
/// Close the connection
/// </summary>
public override void Close()
{
try{
// Free and close resources
if (deviceHandle != null)
{
if (!deviceHandle.IsInvalid)
{
MonoLibUsb.MonoUsbApi.ReleaseInterface(deviceHandle, settings.Interface);
deviceHandle.Close();
}
}
if (sessionHandle != null)
{
sessionHandle.Close();
sessionHandle = null;
}
}
catch {}
isConnected = false;
ConnectionWasClosed();
}
