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Date:      Sun, 26 Mar 1995 07:48:56 -0500 (EST)
From:      Peter Dufault <dufault@hda.com>
To:        root@io.cts.com (Morgan Davis)
Cc:        hackers@FreeBSD.org
Subject:   Re: Not seeing disc at start up
Message-ID:  <199503261248.HAA08855@hda.com>
In-Reply-To: <199503252100.NAA00192@io.cts.com> from "Morgan Davis" at Mar 25, 95 01:00:22 pm

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Morgan Davis writes:
> 
> I wrote about this before, but got no response to it.  I'm wondering
> if this is just "the way it is" or a bug.  Dmesg stripped down to the
> essentials:
> 
> FreeBSD 2.1.0-Development #0: Sat Mar 25 12:05:29 PST 1995
> nca0 at 0x1f88-0x1f8b irq 12 on isa
> nca0: type ProAudioSpectrum-16
> (nca0:1:0): "MEDIAVIS CDR-H93MV 1.41" is a type 5 removable SCSI 2
> cd0(nca0:1:0): CD-ROM 
> cd0(nca0:1:0): UNIT ATTENTION asc:28,0
> cd0(nca0:1:0): Not ready to ready transition, medium may have changed
> cd0: could not get size
> drive empty
> pas0 at 0x388 irq 10 drq 3 on isa
> pas0: <Pro AudioSpectrum 16D rev 255>
> opl0 at 0x38a on isa
> opl0: <Yamaha OPL-3 FM>
> 
> There is a disc in the drive.  -current installs prior to 3/10 would
> correctly indicate a disc in the drive and print the size.  After all
> the new sound stuff went in earlier this month, it reports the "Not
> ready to ready transition" (is that a typo?  What's that mean?),
> "cound not get size", and the lone "drive empty" on a new line.
> 
> Yet, I can work with CDs just fine.  So I'm thinking that there is
> something amiss in the startup probing phase.  Comments?
> 

I committed Julian's CDROM changes for him so I bear some responsibility
for this but I don't have a CD-ROM drive on the FreeBSD system at
the moment.

Is this happening to everyone with a CDROM with the new code, or
only with this media vision device?

"scsi_probedev" tosses out a "be silent!" TEST UNIT READY before
doing the inquiry specifically in order to catch these power up
issues.  Apparently this device isn't complaining through a TEST
UNIT READY or INQUIRY and finally complains when we do a READ CD
CAPACITY.

I just looked at the diffs that I applied for Julian and I don't
see where the new behavior was introduced.

-- 
Peter Dufault               Real Time Machine Control and Simulation
HD Associates, Inc.         Voice: 508 433 6936
dufault@hda.com             Fax:   508 433 5267



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