From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Coppens Subject: Re: Problem with serial port access Date: Mon, 23 Mar 2015 11:41:53 -0300 Message-ID: <20150323114153.bc770a4ac2dfef8b2fd144de@jcoppens.com> References: Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: linux-msdos-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="iso-8859-1" To: Lars =?ISO-8859-1?Q?Bj=F8rndal?= Cc: linux-msdos On Sat, 29 Nov 2014 13:58:31 +0100 lars@lamasti.net (Lars Bj=F8rndal) wrote: > Hope someone can help. This is somewhat late... and you've probably already solved the=20 problem. Serial port communications is nearly always a headache... I used it for many years! Did you check the cable? Does the cable implement the DTR/DSR and/or CTS/RTS lines (in both directions?) Some cables have strange (and incorrect) connections at each side. Some software also uses those lines differently from others. One of the pairs (DSR/DTR I believe) is software controlled, so they can be activated at different times. To avoid cable problems you can try to enable XON/XOFF, and disable hardware handshaking. This is simpler to debug, and even the simplest cable should work (3 wires only). John -- To unsubscribe from this list: send the line "unsubscribe linux-msdos" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html