From owner-freebsd-questions@FreeBSD.ORG Tue Apr 22 20:46:57 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 90C571065672 for ; Tue, 22 Apr 2008 20:46:57 +0000 (UTC) (envelope-from martin@dc.cis.okstate.edu) Received: from dc.cis.okstate.edu (dc.cis.okstate.edu [139.78.103.93]) by mx1.freebsd.org (Postfix) with ESMTP id 6C2538FC15 for ; Tue, 22 Apr 2008 20:46:57 +0000 (UTC) (envelope-from martin@dc.cis.okstate.edu) Received: from dc.cis.okstate.edu (localhost.cis.okstate.edu [127.0.0.1]) by dc.cis.okstate.edu (8.13.8/8.13.8) with ESMTP id m3MKkuj4060819; Tue, 22 Apr 2008 15:46:56 -0500 (CDT) (envelope-from martin@dc.cis.okstate.edu) Message-Id: <200804222046.m3MKkuj4060819@dc.cis.okstate.edu> to: freebsd-questions@freebsd.org, martin@dc.cis.okstate.edu Date: Tue, 22 Apr 2008 15:46:56 -0500 From: Martin McCormick Cc: Subject: Re: Any Known Issues when using both RS-232 and Native Serial Ports? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Apr 2008 20:46:57 -0000 I just realized that I failed to mention that the third port would be a USB converter that converts RS-232 to USB. I sent the message before proofing thoroughly. I write: >We have a FreeBSD6.2 system capturing serial data on /dev/ttyd0. >/dev/ttyd1 is currently set up for serial console use and we may >want to add a third serial port to run yet another serial data >capture engine. > > Since receiving serial data is far more problematic than >transmitting it, can anybody think of any particular problem one >might encounter if both the data acquisition ports happened to >be trying to receive data simultaneously? > > The serial console port is not really an issue because >it will be rarely ever used. > > Thank you. > >Martin McCormick WB5AGZ Stillwater, OK >Systems Engineer >OSU Information Technology Department Network Operations Group >_______________________________________________ >freebsd-questions@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-questions >To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" >