linux-kernel - Re: [PATCH] ptmx: adding handshake support

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Message-ID: <20080429190140.1dc68904@core>
Date:	Tue, 29 Apr 2008 19:01:40 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	sander@...-ginkel.eu
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ptmx: adding handshake support

On Mon, 14 Apr 2008 22:39:21 +0200
sander van ginkel <sander@...-ginkel.eu> wrote:

> Corrected the last issues
> 
> Signed-off-by: Sander van Ginkel <sander@...-ginkel.eu>

NAK

Having played with this (and fixed up further issues) it simply doesn't
work in the real world. pty/tty pairs are always 8bit, don't support
CREAD and can't pass break signals, emulate multiple flow control types
or parity.

A virtual serial device is still a good idea, but a quick hack on pty
devices doesn't actually work - the problem is far more complicated.

Alan
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