From owner-freebsd-questions Sun Nov 12 16:41:50 2000 Delivered-To: freebsd-questions@freebsd.org Received: from seed.pacific.net.sg (seed.pacific.net.sg [203.120.90.77]) by hub.freebsd.org (Postfix) with ESMTP id 000DE37B479 for ; Sun, 12 Nov 2000 16:41:44 -0800 (PST) Received: from pop2.pacific.net.sg (pop2.pacific.net.sg [203.120.90.86]) by seed.pacific.net.sg with ESMTP id eAD0fgJ12634; Mon, 13 Nov 2000 08:41:43 +0800 (SGT) Received: from gchang (spoff195.pacific.net.sg [203.120.95.195]) by pop2.pacific.net.sg with SMTP id IAA08183; Mon, 13 Nov 2000 08:41:42 +0800 (SGT) Message-ID: <003701c04d0a$378be2a0$c35f78cb@gchang> From: "James Lim" To: "Justin Hawkins" , References: Subject: Re: USB CD burner problems Date: Mon, 13 Nov 2000 08:39:43 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi there! Could you cut and paste the exact scsi error msgs that you received? That would help us to understand the problem more! Regards, James Lim ----- Original Message ----- From: Justin Hawkins To: Sent: Monday, November 13, 2000 7:37 AM Subject: USB CD burner problems > Hi, > > I bought a USB CD burner a while ago, internally the drive is a > Teac. I had a lot of problems with the USB ports on my Windows > box's motherboard (it's a Pentium MMX, it has USB headers but not > the actual ports, and of course they are proprietory). I ended up > buying a USB PCI card and putting it in there. Well I'm sure you > don't care too much about my Windows problems, but the short of it > is it didn't work with the PCI card - it would burn for a while > then the drive would appear to reset and I'd get a bunch of SCSI > errors. > > Now this box is underpowered compared to the minimum specs, but I > don't hold much truck with them :-) > > Anyway in light of my failure, I decided to try it my FreeBSD box > (which is only a 486-100!). After moving the PCI card and (slowly) > compiling in USB support, I'm happy to say it detected the drive > and mounted pre-recorded disks no problem. This is 4.2-BETA. > > I compiled up the cdrecord port and gave it a test. It seemed to > have exactly the same problem! It maybe went a bit further, but > then the drive would clunk, and I'd get SCSI errors. This would > actually be quite bad as it would (I didn't narrow down the exact > circumstances) in some places completely crash the box - I think > it was after unplugging the drive after it reset. > > I'm starting to think at this stage that the drive was faulty, but > I took it to a friend with on-motherboard USB ports and it worked > flawlessly. > > So I guess what I'm asking is do I *really* need a PII-266 as the > burner box suggests? It seems ludicrous that you need something > like that to send just 150K/second to a device. > > In all my tests I eventually downgraded to burning at 1x and never > (in either Windows software or cdrecord) did I see the buffer go > under 95% > > Other information that may be important, PCI USB card (the only > common factor in my problems) has a VIA 83C572 chipset, it uses > the uhci device: > > usb0: on uhci0 > usb0: USB revision 1.0 > > Does anyone think this could be the problem? > > Thanks for any help anyone can offer. > > Regards, > > Justin > > -- > Justin Hawkins --> justin@hawkins.dropbear.id.au > "Don't sweat it -- it's only 1's and 0's" > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message