[fpc-pascal] Flushing serial inqueue on Linux

[Bernd Mueller]

>> I can read incoming characters, so the connection is ok and lHandle is 
>> valid. I tried TCIOFLUSH as another QueSelector and tried also ioctl 
>> instead of Fpioctl.
> 
> termio.tcflush but that does 
> 
> fpioctl(fd,TCIOflush,pointer(qsel));

TCFlush is working now. Thank you.

Regards, Bernd.