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Date:      Mon, 1 Mar 1999 14:34:18 -0500
From:      Natty Rebel <dervish@ikhala.tcimet.net>
To:        hackers@freebsd.org
Subject:   Problems with teac cdroms + symbios based adapters?
Message-ID:  <19990301143418.A1225@ikhala.tcimet.net>

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Hey all.
I've recently purchased a Teac 516s 16x cdrom along with a Kouwell 801V10B
Fast SCSI adapter (Symbios 53C810a chipset).  My problem is that the cdrom
drive fails to recognise any cd's placed in it.  Here are some results
using camcontrol:

# camcontrol tur -n cd -v
(pass0:ncr0:0:3:0): TEST UNIT READY. CDB: 0 0 0 0 0 0 
(pass0:ncr0:0:3:0): NOT READY asc:3a,0
(pass0:ncr0:0:3:0): Medium not present
Unit is not ready

the above is the main message that i see (i.e. 'medium not present' and
'unit is not ready').  what's funny is that i can send the eject command
and the tray will eject.  i've called teac tech support and the rep said 
there were some known issues with cam and symbios based chipsets.  is this correct?
the mailing list archives are off-line at the moment so i could not check if this
is indeed an issue. 

here are some other outputs:

# camcontrol devlist -v
scbus-1 on xpt1116471295 bus 0:
<  >                               at scbus-1 target -1 lun -1 (xpt0)
scbus0 on ncr0 bus 0:
<TEAC CD-ROM CD-516S 1.0G>         at scbus0 target 3 lun 0 (pass0,cd0)
<  >                               at scbus0 target -1 lun -1 ()

# camcontrol inquiry -n cd
<TEAC CD-ROM CD-516S 1.0G> Removable CD-ROM SCSI-2 device 
Serial Number 
10.0MB/s transfers (10.0MHz, offset 8)

# camcontrol reset -n cd
Reset of bus 0 was successful

# camcontrol periphlist -n cd
pass0:  generation: 6 index: 1 status: MORE
cd0:  generation: 6 index: 2 status: LAST

any help is appreciated ...

#;^)
-- 
natty rebel
harder than the rest ...


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