From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934770AbXGZQjW (ORCPT ); Thu, 26 Jul 2007 12:39:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934205AbXGZQfJ (ORCPT ); Thu, 26 Jul 2007 12:35:09 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:53269 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S934316AbXGZQfH (ORCPT ); Thu, 26 Jul 2007 12:35:07 -0400 Date: Thu, 26 Jul 2007 17:41:50 +0100 From: Alan Cox To: Lee Howard Cc: Uwe =?UTF-8?B?S2xlaW5lLUvDtm5pZw==?= , linux-serial@vger.kernel.org, tytso@mit.edu, rmk@arm.linux.org.uk, linux-kernel@vger.kernel.org Subject: Re: serial flow control appears broken Message-ID: <20070726174150.4ffcabd4@the-village.bc.nu> In-Reply-To: <46A8CB96.1010501@howardsilvan.com> References: <46A7FE6A.4030309@howardsilvan.com> <20070726123420.GA14163@informatik.uni-freiburg.de> <46A8CB96.1010501@howardsilvan.com> X-Mailer: Claws Mail 2.9.1 (GTK+ 2.10.13; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 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 > The manufacturer is using a scope to look for RTS and they're not seeing > it, either. I just use my eyes to look at the LED, but I can see the > CTS, DTR, DCD, RD, and TD lights blink, flicker, or dim... (and TD, RD, > and CTS tend to go on and off rather quickly). And you have 1. The port set up correctly for flow control options in the kernel ? 2. Verified that the board vendor remembered to wire it ?