From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262966AbTDFNAB (for ); Sun, 6 Apr 2003 09:00:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262967AbTDFNAB (for ); Sun, 6 Apr 2003 09:00:01 -0400 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:45492 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S262966AbTDFNAA (for ); Sun, 6 Apr 2003 09:00:00 -0400 Date: Sun, 6 Apr 2003 14:11:32 +0100 From: "Dr. David Alan Gilbert" To: Michael Buesch Cc: linux-kernel@vger.kernel.org Subject: Re: Serial port over TCP/IP Message-ID: <20030406131132.GJ639@gallifrey> References: <200304061447.46393.freesoftwaredeveloper@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200304061447.46393.freesoftwaredeveloper@web.de> X-Chocolate: 70 percent or better cocoa solids preferably X-Operating-System: Linux/2.5.66 (i686) X-Uptime: 14:08:43 up 1 day, 1:32, 1 user, load average: 0.06, 0.11, 0.17 User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Michael Buesch (freesoftwaredeveloper@web.de) wrote: > Hi. > > Is it possible to make a char-dev (a serial device ttyS0) > available via TCP/IP on a network like it is possible > for block-devices like a harddisk via nbd? > Is kernel-support for this present? > If not, is it technically possible to develop such a driver? I keep thinking that it would be nice to have a mechanism for user space char devices; it would have to have a mechanism to pass all the ioctls to the process that dealt with it. (The particular cases which sparked this idea for me were to do user space SCSI tape drivers to do raid tape and the like, and for emulation of touch screens or mice on systems that only had the other.). Dave ---------------- Have a happy GNU millennium! ---------------------- / Dr. David Alan Gilbert | Running GNU/Linux on Alpha,68K| Happy \ \ gro.gilbert @ treblig.org | MIPS,x86,ARM,SPARC,PPC & HPPA | In Hex / \ _________________________|_____ http://www.treblig.org |_______/