[WBEL-users] USB CDR

[Aaron Smith]

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On Fri, 2004-01-30 at 13:59, Aaron Smith wrote:
> 	This is a shot in the dark, but I'm looking around for anyone that
> might have run in to this problem.  I have an external USB CD-RW hooked
> up to my WBEL 3.0 machine.  The drive is fine, and it even worked with
> WBEL...at one point.  Then I rebooted and it hasn't been detected
> since.  If I plug it in and turn it on, the USB hotplug system sees it
> just fine, load the appropriate modules (scsi_mod and usb-storage) and
> an entry for the CDR appears in /proc/bus/usb/drivers as well as in
> /proc/scsi/usb-storage-0.
> 	The problem is that it does NOT appear in /proc/scsi/scsi.  It never
> gets attached to an actual scsi device so that I can mount cd's, burn,
> or whatever.  I have no *clue* why.  The one time I got it to actually
> be detected by the scsi system was when I unloaded and reloaded the
> usb-storage module with the drive powered on.  That trick hasn't worked
> since. =20
> 	So I'm  looking for any ideas about what might be happening, as well
> some answers to these questions to aid in my troubleshooting:
> 	What kernel modules need to be loaded for this thing to be recognized
> other than scsi_mod and usb-storage?  sr_mod perhaps?
> 	I have enabled Verbose Debugging for USB, SCSI, and usb-storage.  I
> don't appear to be getting jack from the usb-storage debugging, nor
> SCSI.  What do I need to echo to /proc/scsi/scsi to get some serious
> SCSI debug info?  I've tried various iterations of:
> echo "scsi log scan 1" > /proc/scsi/scsi but I'm getting nothing in
> messages.
> =09
> 	I realize that this mailing list probably isn't the place for this, but
> my frustration level is getting pretty high and I can't seem to find any
> information in google or on the linux-usb-users mailing list.  Everyone
> seems to be of the opinion that the proper course of events is:
> 	Step One: Turn on USB Device
> 	Step Two: Some magic happens...
> 	Step Three: Mount the resulting SCSI device
> 	Step Four:  Profit!

	Heh.   Writing to this list has ALREADY paid off.    I at least
answered ONE of my questions in that the debug messages go to kern.debug
so I have that properly routed to a log file now. =20
--=20
-----------------------------------------------------------------
Aaron Smith             		vox: 269.226.9550 ext.26
Network Director        		fax: 269.349.9076=09
Nexcerpt, Inc.          		http://www.nexcerpt.com
=09
	...Nexcerpt... Extend Your Expertise


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