SCSI CD-ROM driver bug in 2.2.x?

["Daniel J. Frasnelli" <dfrasnel csee wvu edu>]

	I've had trouble accessing my Teac 12X (model CD-516S) ever since 
upgrading to the 2.2 kernel.  Able to mount discs just fine under 2.0.36, 
but I really, really don't feel like downgrading egcs again and losing 
the benefits of 2.2.  Hardware is a Miata 500a with an Adaptec 2940UW; 
other things on the chain include a Seagate 34572W disk, but that's it.  
	The Teac is detected just fine when starting up: 
  Vendor: TEAC      Model: CD-ROM CD-516S    Rev: 1.0G
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 3, lun 0

but no matter which disc I try (and I know all of them are not defective), 
I get the following when trying to mount: 

mount -t iso9660 /dev/cdrom /mnt/cdrom/
mount: block device /dev/cdrom is write-protected, mounting read-only
mount: No medium found

with the following dmesg output: 
sr0: CDROM not ready.  Make sure there is a disc in the drive.
cdrom: open failed.
Device not ready.  Make sure there is a disc in the drive.

	Pretty weird, eh?  Kernel is 2.2.2pre1, but I've tried almost every 
2.2.x kernel with the same results. 

Thanks for any help,
Daniel
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