On May 17, 7:45 am, Barry Margolin <bar...@alum.mit.edu> wrote:
> In article <5b0ti3F2qp1i...@mid.uni-berlin.de>,
>  j...@toerring.de (Jens Thoms Toerring) wrote:
> 
> 
>
> But the reader process won't normally get what the writer process wrote.
> When you write to a serial port, it sends to the device at the other end
> of the serial cable.  When you read from a serial port you get what the
> device sent.
>
> So unless the device is echoing everything it received back (which is
> what a loopback cable does), the serial port can't be used to
> communicate directly between processes.
>
> --
> Barry Margolin, bar...@alum.mit.edu
> Arlington, MA
> *** PLEASE post questions in newsgroups, not directly to me ***
> *** PLEASE don't copy me on replies, I'll read them in the group ***

okay! got it! thank you.

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