Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 15 Mar 2003 15:35:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 15 Mar 2003 15:35:13 -0500 Received: from [195.39.17.254] ([195.39.17.254]:20740 "EHLO Elf.ucw.cz") by vger.kernel.org with ESMTP id ; Sat, 15 Mar 2003 15:35:11 -0500 Date: Sat, 15 Mar 2003 20:46:46 +0100 From: Pavel Machek To: Ed Vance Cc: "'Linux PPP'" , linux-serial@vger.kernel.org, "'linux-kernel'" Subject: Re: RS485 communicatio Message-ID: <20030315194646.GB367@elf.ucw.cz> References: <11E89240C407D311958800A0C9ACF7D1A33DDF@EXCHANGE> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <11E89240C407D311958800A0C9ACF7D1A33DDF@EXCHANGE> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.3i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 864 Lines: 22 Hi! > > I will be grateful if anybody of them could help me with my > > current problem. > > > > I believe Point-to-Point Protocol only supports point-to-point symmetric > links. Don't think there is any multi-point support in the protocol. IIRC, > PPP also requires a full duplex link, which is not available on an RS-485 > link with more than two stations, even if it is a 4-wire link. Get scarabd (I don't know *where* it is), it can run TCP/IP over slip over half-duplex link. Performance is not too good. Pavel -- When do you have a heart between your knees? [Johanka's followup: and *two* hearts?] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/