public unsafe virtual bool FinishDataXfer(ref byte[] singleXfer, ref byte[] buffer, ref int len, ref byte[] ov)
{
bool rResult;
uint[] bytes = new uint[1];
// DWY fix single variable during call by converting it into an 'array of 1'
// and fixing it to a pointer.
fixed(uint *buf0 = bytes)
{
fixed(byte *buf = singleXfer)
{
SINGLE_TRANSFER *transfer = (SINGLE_TRANSFER *)buf;
rResult = PInvoke.GetOverlappedResult(_hDevice, ov, ref bytes[0], 0);
if (rResult == false)
{
transfer->NtStatus = PInvoke.GetLastError();
}
}
}
len = (int)bytes[0];
fixed(byte *buf = singleXfer)
{
SINGLE_TRANSFER *transfer = (SINGLE_TRANSFER *)buf;
_usbdStatus = transfer->UsbdStatus;
_ntStatus = transfer->NtStatus;
if ((XferMode == XMODE.BUFFERED) && (len > 0))
{
//len -= (int)transfer->BufferOffset; This is not required becuse we pass the actual data buffer length
for (int i = 0; i < len; i++)
{
buffer[i] = buf[transfer->BufferOffset + i];
}
}
}
_bytesWritten = (uint)len;
return(rResult && (_usbdStatus == 0) && (_ntStatus == 0));
}