public void Open(string strPortName)
{
m_intPtrUSB = FIO.CreateFile(strPortName, 0, 3, IntPtr.Zero, 3, 0, IntPtr.Zero);
if (-1 == m_intPtrUSB.ToInt32())
{
throw new Exception(CMessages.GetLastWin32ErrorToString());
}
HID.HidD_SetNumInputBuffers(m_intPtrUSB, 0x40);
}