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 doesfpioctl(fd,TCIOflush,pointer(qsel));
TCFlush is working now. Thank you. Regards, Bernd. _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal