[Xastir] Serial port issues with Xastir on OS X

[Curt, WE7U]

On Thu, 19 Aug 2010, Alex Carver wrote:

> The difference between cu and tty goes into the hardware
> handshaking.  Any of the cu devices ignores hardware handshake
> while the tty side needs it.  The idea was that you could open a
> modem on cu even if the modem says it's not ready and ensure you
> could control it even if it was in a confused state.  The tty port
> would honor the handshake/control lines so if the lines weren't
> asserted properly you weren't going to talk to the device at all.

One point I was making is that over time we went from:

         "/dev/tty*"   (or maybe "/dev/ttys*"?)
      to "/dev/cu*"
then to "/dev/ttyS*"  (note the cap 'S')

with the same computer hardware and same modems, just different
Linux kernels.  That's long-ago history.  I believe I'm now at 18
years running Linux...

-- 
Curt, WE7U.                         <http://www.eskimo.com/~archer>
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