From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267251AbUJFHiz (ORCPT ); Wed, 6 Oct 2004 03:38:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268915AbUJFHiz (ORCPT ); Wed, 6 Oct 2004 03:38:55 -0400 Received: from iona.labri.fr ([147.210.8.143]:12970 "EHLO iona.labri.fr") by vger.kernel.org with ESMTP id S267251AbUJFHix (ORCPT ); Wed, 6 Oct 2004 03:38:53 -0400 Date: Wed, 6 Oct 2004 09:38:47 +0200 From: Samuel Thibault To: =?iso-8859-1?Q?S=E9bastien?= Hinderer Cc: Alan Cox , rmk@arm.linux.org.uk, Linux Kernel Mailing List Subject: Re: [Patch] new serial flow control Message-ID: <20041006073847.GA2026@bouh.is-a-geek.org> Mail-Followup-To: =?iso-8859-1?Q?S=E9bastien?= Hinderer , Alan Cox , rmk@arm.linux.org.uk, Linux Kernel Mailing List References: <20041004225430.GF2593@bouh.is-a-geek.org> <20041004225530.GG2593@bouh.is-a-geek.org> <1097016674.23924.12.camel@localhost.localdomain> <20041006071110.GA1112@galois> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20041006071110.GA1112@galois> User-Agent: Mutt/1.5.6i-nntp Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Le mer 06 oct 2004 à 09:11:10 +0200, Sébastien Hinderer a tapoté sur son clavier : > > > Here is patch for 2.6 > > > > How is this different from CRTSCTS ? > > I'd say it is symmetric. I think the roles of RTS and CTS are exchanged. > Sam, am I right ? No: CRTSCTS is a one-signal-for-each-way flow control: each side of the link tells whether it can receive data. CTVB is a two-signals-for-only-one-way flow control: the device tells when it wants to send data, the PC acknowledges that, and then one frame of data can pass. Regards, Samuel Thibault