netdev - about tty line discipline and pppd

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Message-ID: <3209d0d50701030512jbb14da8y9803d7c54821ddf0@mail.gmail.com>
Date:	Wed, 3 Jan 2007 11:12:20 -0200
From:	"Evandro Clivatti Dall'Agnol" <evandrocd@...il.com>
To:	netdev@...r.kernel.org
Subject: about tty line discipline and pppd

Hi all, I need your advice, please.

Situation:
I have two ppc processors with their SMC2 ports connected to each
other port. Saying 'y' to SMC2 support on kernel 2.4, I can "echo foo
>> /dev/ttyS1" in one processor while "cat /dev/ttyS1" on the other
and the "foo" text appears.

Question:
I want to exchange data between these two processors through sockets
interface. The right way to do that is writing a "tty line discipline"
driver?

Another question:
I tried without sucess to setup pppd on this line, the more close to a
working pppd I got was issuing "stty -F /dev/ttyS1 -echo raw", so the
pppd appears to send the LCP packets and the other peer receive them
while I watch through "cat /dev/ttyS1" but pppd itself doesn't work.
Do you have some advice on this situation too?

Thanks in advance,
Evandro Clivatti Dall'Agnol
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