Barry Margolin <barmar@alum.mit.edu> wrote:
> In article <5b0ti3F2qp1iiU1@mid.uni-berlin.de>,
>  jt@toerring.de (Jens Thoms Toerring) wrote:
 
[vbcol=seagreen]
> 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.

I was definitely assuming that the OP will be using a loopback
able - otherwise all bets are off.
Regards, Jens
--
\   Jens Thoms Toerring  ___      jt@toerring.de
\__________________________      http://toerring.de

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