From owner-freebsd-questions@FreeBSD.ORG Fri Sep 9 19:50:58 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E0CEE16A41F; Fri, 9 Sep 2005 19:50:58 +0000 (GMT) (envelope-from mike@sentex.net) Received: from smarthost1.sentex.ca (smarthost1.sentex.ca [64.7.153.18]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6919443D45; Fri, 9 Sep 2005 19:50:58 +0000 (GMT) (envelope-from mike@sentex.net) Received: from pumice6.sentex.ca (pumice6.sentex.ca [64.7.153.21]) by smarthost1.sentex.ca (8.13.3/8.13.3) with ESMTP id j89Jov4j094031; Fri, 9 Sep 2005 15:50:57 -0400 (EDT) (envelope-from mike@sentex.net) Received: from lava.sentex.ca (pyroxene.sentex.ca [199.212.134.18]) by pumice6.sentex.ca (8.13.3/8.13.3) with ESMTP id j89Jov99095885; Fri, 9 Sep 2005 15:50:57 -0400 (EDT) (envelope-from mike@sentex.net) Received: from simian.sentex.net (simeon.sentex.ca [192.168.43.27]) by lava.sentex.ca (8.13.3/8.13.3) with ESMTP id j89Jot2g055360 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 9 Sep 2005 15:50:55 -0400 (EDT) (envelope-from mike@sentex.net) Message-Id: <6.2.3.4.0.20050909152156.05cfd970@64.7.153.2> X-Mailer: QUALCOMM Windows Eudora Version 6.2.3.4 Date: Fri, 09 Sep 2005 15:51:21 -0400 To: Paul Marciano From: Mike Tancsa In-Reply-To: <1126292392.11649.5.camel@realtime.exit.com> References: <20050909170944.77242.qmail@web54002.mail.yahoo.com> <1126292392.11649.5.camel@realtime.exit.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Virus-Scanned: by amavisd-new X-Scanned-By: MIMEDefang 2.51 on 64.7.153.18 X-Scanned-By: MIMEDefang 2.51 on 64.7.153.21 Cc: freebsd-questions@freebsd.org, freebsd-usb@freebsd.org Subject: Re: Will USB serial ever be fixed? 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: Fri, 09 Sep 2005 19:50:59 -0000 At 02:59 PM 09/09/2005, Frank Mayhar wrote: >On Fri, 2005-09-09 at 10:09 -0700, Paul Marciano wrote: > > I have a general question on the status of USB to > > serial support in FreeBSD (specifically the ucom and > > ftdi drivers). > > > > I need an extra serial port on my system and for > > reasons outside the scope of this email I can't just > > plug in a PCI card. I'm trying to use USB, but it > > seems that ucom is broken and no one is fixing it. > > > > A tcflush() bug posted last year reports that USB > > serial ports hang on a call to tcflush(). This can be > > observed by using getty on one. > > > > Another poster reported problems running PPP > > (including a kernel crash). > >Well, I've got a handful of such devices that appear to work just fine. >Now, mine are based on the Prolific PL-2303* chips but you don't mention >any specific hardware. All I know is that I'm using them for consoles >(and am running getty on them) with no hangs or crashes of any kind. I am using the 2 port serial USB card from http://www.byterunner.com/ and it works quite well on RELENG_5 and RELENG_6 ucom0: FTDI USB FAST SERIAL ADAPTER, rev 2.00/5.00, addr 3 ucom1: FTDI USB FAST SERIAL ADAPTER, rev 2.00/5.00, addr 3 There were a number of fixes that went into RELENG_5 that fixed panics that I was seeing. I use this ucom device presently to access 2 servers without any issues If you can provide more detail as to exactly what you were doing to trigger the panic, I can try and reproduce it on my gear here to see if its fixed or not. ---Mike