Exemple #1
0
        public static bool InterfaceGetDsr(out bool dsr)
        {
            dsr = false;
            if (_handleFtdi == (IntPtr)0)
            {
                return(false);
            }
            try
            {
                Ftd2Xx.FT_STATUS ftStatus;
#if USE_BITBANG
                if (_bitBangMode)
                {
                    byte mode;
                    ftStatus = Ftd2Xx.FT_GetBitMode(_handleFtdi, out mode);
                    if (ftStatus != Ftd2Xx.FT_STATUS.FT_OK)
                    {
                        return(false);
                    }
                    dsr = (mode & (int)BitBangBits.Dsr) == 0;
                    return(true);
                }
#endif
                uint modemStatus = 0x0000;
                ftStatus = Ftd2Xx.FT_GetModemStatus(_handleFtdi, ref modemStatus);
                if (ftStatus != Ftd2Xx.FT_STATUS.FT_OK)
                {
                    return(false);
                }
                dsr = (modemStatus & 0x20) != 0;
            }
            catch (Exception)
            {
                return(false);
            }
            return(true);
        }