RE: Serial Driver for PPP - that runs in Half Duplex Mode

[Vanitha Ramaswami <vanitha@agilis.st.com.sg>]

Hello,
    Thanks for your mail. Can you let me know what are the other protocols that performs better than PPP ?

Thanks
Vanitha

-----Original Message-----
From:	Alan Cox [SMTP:alan@lxorguk.ukuu.org.uk]
Sent:	Tuesday, August 17, 2004 10:12 PM
To:	vanitha@agilis.st.com.sg
Cc:	'linux-kernel@vger.kernel.org'
Subject:	Re: Serial Driver for PPP - that runs in Half Duplex Mode

On Maw, 2004-08-17 at 11:56, Vanitha Ramaswami wrote:
> Do you have a serial port PPP Driver that supports half-duplex mode of 
> operation ?. i.e.  I need RTS to be active when you are transmitting data 
> and to be inactive to receive.

You can do this with a user space helper if performance isnt critical
(ie its not megabits). Create a tty/pty pair. Plug pppd one side of it
and run your own program the other side between it and the real tty.

This is how the old scarabd radio driver worked, although not using PPP
because we found that with the losses we got on radio other protocols
worked better.