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

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Message-ID: <20061210201438.tilman@imap.cc>
Date:	Sun, 10 Dec 2006 20:19:05 +0100
From:	Tilman Schmidt <tilman@...p.cc>
To:	Corey Minyard <cminyard@...sta.com>
CC:	linux-serial@...r.kernel.org,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Hansjoerg Lipp <hjlipp@....de>
Subject: Re: [PATCH] Add the ability to layer another driver over the serial driver

On Mon, 16 Oct 2006 11:53:15 -0500, Corey Minyard <cminyard@...sta.com> wrote:
> This is a set of three patches to allow adding another driver on top of
> the current serial driver without too much change to the serial code.
> This is more for comments right now, it is probably not ready for real
> use yet.
> 
> The patches are too big to post here, so I'm putting them on
> http://home.comcast.net/~minyard
> 
> The three patches are:
> 
>     * serial-remove-tty-struct-from-driver.patch - A general patch to
>       remove the tty includes from the low-level serial drivers. Only
>       fixes the 8250 for now.
> 
>     * serial-allow-in-kernel-users.patch - The actual patch that adds
>       the layered driver to the serial core.
> 
>     * serial-8250-cleanup.patch - Add support for the layered driver
>       and poll to the 8250 uart.

Has anything ever come of this? I would be very much interested in it.
It might make it possible to extend the Siemens Gigaset drivers
(drivers/isdn/gigaset) to the RS232 attached M101 DECT adapter.
There is a working driver out of tree which accesses the serial port
hardware directly (i8250 only), but that kind of thing doesn't seem
fit for inclusion in the kernel.

Thanks
Tilman

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