Hi all, If this can help somebody like mee... -------- Original Message -------- Subject: Re: My CDR is not recognized at boot Date: Wed, 12 May 1999 17:52:13 +0200 From: Kurt Garloff <garloff@suse.de> Organization: SuSE GmbH, Nürnberg, FRG To: Jean-Yves BARBIER <jybarbier@wanadoo.fr> References: <3739681B.27DE67A0@wanadoo.fr> On Wed, May 12, 1999 at 01:38:03PM +0200, Jean-Yves BARBIER wrote: > Hi Kurt, > > I found your email adress in your driver's sources. Yes. It's because I am the maintainer of this driver. > I've got a TEKRAM DC390 scsi card (simple fast-scsi), and here is my problem: > > Debian distribution, > ABIT BH6 w/PII400, > SCSI chain: CTRLR=Id7, > CD-ROM PIONEER DR-U16S=Id4, > CD-R YAMAHA CDR-4416S=Id5 ^^^^^^^^^^^^^^^^^^^^^ This device is very well known to me. It caused trouble to more people than to you. That's a Yamaha bug: It needs too much time to recover from a SCSI bus reset. > 1- Weird thing: If I let the speed setting of the DC390 @ 10.0 MHz transfer > speed, at boot the YAMAHA says its working @ 8.0 MHz; If I put 8.0 MHz in the > DC390, at next boot, it says its working @ .. 6.6 MHz (don't know why?) Me neither. Almost certainly some Yamaha firmware misfunction. > * Started (a month ago) w/kernel 2.0.36 from debian's CD: YAMAHA causes > troubles, zapped from system (I was obliged to cut-off the main power supply to > recover it in the system!): The DC390 was recognized as AM53C974, Then you used the AM53C974 driver. Well it's buggy, if you allow disconnection, so I'd prefer not to use it. Unfortunately, it's also unmaintained. > * Recompiled the kernel w/only the DC390: DC390 was recognized as DC390, YAMAHA > CR was not recognized, > > * Upgrade to 2.2.1: always no recognition of the CDR (not seen by the driver) > > * Upgrade to 2.2.7: still the same! It's the same driver in those kernel, so the behaviour must be the same. Here's the band aid: Become root and type echo "scsi add-single-device 0 0 5 0" >/proc/scsi/scsi cat /proc/scsi/scsi Your CD-R will be detected. Please read the web page http://www.garloff.de/kurt/linux/dc390/problems.html for more information. Hope this helps. -- Kurt Garloff <garloff@suse.de> SuSE GmbH, Nürnberg, FRG Linux kernel development; SCSI driver: DC390 (tmscsim/AM53C974)
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