On Mon, 2003-11-24 at 16:26, A.J. Bonnema wrote:
> Taylor, ForrestX wrote:
> >>Doing "fdisk -l /dev/sda" gives no result (it just returns).
> >>
> >>The device is being recognized as a ND5010 Card Reader from Neodio
> >>Technologies Corp. using lsusb and lsusb -s 003:002 -v. Furthermore the
> >>disk is recognized correctly by cat /proc/bus/usb/devices as a USB
> >>Storage Device.
> >>
> >>Anyone know what's wrong?
> >
> >
> > You may have a problem like I did this weekend:
> >
> > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=110653
> >
> > The Fedora/Red Hat kernels don't have multi-LUN support (basically one
> > device with multiple disks). You can manually add the LUNs in /proc:
> >
> > echo "scsi-add-single-device 0 0 0 1" > /proc/scsi/scsi
> > echo "scsi-add-single-device 0 0 0 2" > /proc/scsi/scsi
> > echo "scsi-add-single-device 0 0 0 3" > /proc/scsi/scsi
> >
> > See if that helps.
> >
> > Forrest
>
> </gratitude-mode>
> Fantastic! Great! This is it! Thank you very much!!
> <gratitude-mode>
>
> And thank you for documenting the bug. It works like a charm. I'm very
> content I can finally read the bugger.....
>
> What I wonder about is, how did you find the error and how did you find
> the statements to correct it?
It took me an hour or two of googling to make some sense out of it.
Originally I was trying to mount /dev/sda1, because I thought that it
would only see one slot at a time. I eventually found Question 9 under
Trouble Shooting from the FAQ on http://www.linux-usb.org/. From there
it was just testing and documentation.
I created a patch for USB hotplug that should look at your scsi devices
and send the lines automatically. If you get a chance, try it out (and
remove the scsi-add-single-device lines you may have added elsewhere.
To use this patch, su to root and cd to /etc/hotplug. Make a backup
copy of hotplug.functions (cp hotplug.functions hotplug.functions.orig),
and run patch:
patch -p2 < /path/to/hotplug-multilun.patch
Unplug the USB card reader, and plug it back in, and then look at
/proc/scsi/scsi to see if you have more than one device for you card
reader. I have only tested it a few times, but it works for me. Let me
know how it works for you. If it works for you, I'll post it on
bugzilla.
Forrest
--- /etc/hotplug/hotplug.functions.orig 2003-11-24 12:12:27.000000000 -0800
+++ /etc/hotplug/hotplug.functions 2003-11-24 12:23:16.000000000 -0800
@@ -171,6 +171,19 @@
fi
if echo "$MODULE" | grep -q "usb-storage" > /dev/null 2>&1 ; then
[ -x /usr/sbin/updfstab ] && /usr/sbin/updfstab
+
+ # Grab the scsi variables from /proc/scsi/scsi
+ SCSI=`grep -B 1 "USB Card Reader" /proc/scsi/scsi | grep Host | awk '{print $2}' | awk -Fscsi '{print $2}'`
+ CHANNEL=`grep -B 1 "USB Card Reader" /proc/scsi/scsi | grep Host | awk '{print $4}' | bc -l`
+ ID=`grep -B 1 "USB Card Reader" /proc/scsi/scsi | grep Host | awk '{print $6}' | bc -l`
+
+ mesg Adding multi-LUN support
+ # Add LUNs 1-15
+ i=1
+ while [[ $i -lt 16 ]];do
+ echo "scsi-add-single-device $SCSI $CHANNEL $ID $i" >> /proc/scsi/scsi
+ i=`echo "$i+1" | bc -l`
+ done
fi
done
}
