From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937573AbWLKTIG (ORCPT ); Mon, 11 Dec 2006 14:08:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S937566AbWLKTIG (ORCPT ); Mon, 11 Dec 2006 14:08:06 -0500 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:37487 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S937577AbWLKTID (ORCPT ); Mon, 11 Dec 2006 14:08:03 -0500 Date: Mon, 11 Dec 2006 19:15:43 +0000 From: Alan To: Guennadi Liakhovetski Cc: Corey Minyard , Tilman Schmidt , linux-serial@vger.kernel.org, Linux Kernel , Hansjoerg Lipp , Russell Doty Subject: Re: [PATCH] Add the ability to layer another driver over the serial driver Message-ID: <20061211191543.32ce2da8@localhost.localdomain> In-Reply-To: References: <4533B8FB.5080108@mvista.com> <20061210201438.tilman@imap.cc> <457CB32A.2060804@mvista.com> <20061211102016.43e76da2@localhost.localdomain> X-Mailer: Sylpheed-Claws 2.6.0 (GTK+ 2.8.20; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > 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.