linux-kernel - Re: [PATCH] Add the ability to layer another driver over the serial driver

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Date:	Mon, 11 Dec 2006 19:15:43 +0000
From:	Alan <alan@...rguk.ukuu.org.uk>
To:	Guennadi Liakhovetski <g.liakhovetski@....de>
Cc:	Corey Minyard <cminyard@...sta.com>,
	Tilman Schmidt <tilman@...p.cc>, linux-serial@...r.kernel.org,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Hansjoerg Lipp <hjlipp@....de>, Russell Doty <rdoty@...hat.com>
Subject: Re: [PATCH] Add the ability to layer another driver over the serial
 driver

> there as "protocols" for user-tty interfaces, i.e., you need a user, that 
> opens a tty, sets a line discipline to it, and does io (read/write) over 
> it, and NOT to be completely initialised and driven from the kernel.

Take a look at the SLIP driver. User space sets up the port but all the
actual I/O is to/from the kernel not via user space.
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