/// <summary>
/// Initialize the FTDI device
/// </summary>
/// <param name="info">The node info of FTDI device</param>
/// <returns>The number of FTDI device connected</returns>
/// <exception cref="FTDIException"> When there are failures in the procedure</exception>
public uint FTDevInit(out FTDeviceListInfoNode[] info)
{
uint devNum = 0;
status = DllWraper.FT_CreateDeviceInfoList(ref devNum);
if (status != FTStatus.OK)
{
throw new FTDIException(status);
}
if (devNum == 0)
{
info = null;
return(devNum);
}
// Allocate the memory for unmanaged data
IntPtr ptrInfo = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(FTDeviceListInfoNode)) * (int)devNum);
// Allocate memory for managed data
info = new FTDeviceListInfoNode[devNum];
status = DllWraper.FT_GetDeviceInfoList(ptrInfo, ref devNum);
if (status != FTStatus.OK)
{
throw new FTDIException(status);
}
for (int i = 0; i < devNum; i++)
{
IntPtr ptrElement = new IntPtr(ptrInfo.ToInt64() + Marshal.SizeOf(typeof(FTDeviceListInfoNode)) * i);
FTDeviceListInfoNode node = (FTDeviceListInfoNode)Marshal.PtrToStructure(ptrElement, typeof(FTDeviceListInfoNode));
info[i] = node;
}
Marshal.FreeHGlobal(ptrInfo);
return(devNum);
}
/// <summary>
/// Get the Information of Channel
/// </summary>
/// <param name="channel">The index of channel</param>
/// <exception cref="FTDIException">When Get channel information failed</exception>
/// <returns>The Device Info Class</returns>
public DeviceInfo GetChannelInfo(uint channel)
{
FTDeviceListInfoNode node = new FTDeviceListInfoNode();
status = SPIDllDriver.SPI_GetChannelInfo(channel, ref node);
if (status != FTStatus.OK)
{
throw new FTDIException(status);
}
return(node);
}
public static extern FTStatus SPI_GetChannelInfo(uint index, ref FTDeviceListInfoNode chanInfo);