Comment 13 for bug 313504

The problem has reappeared in the latest three Ubuntu kernels, including 3.16.0-31-generic. I can no longer scan.

There seems to have been a change that meant the system started to recognise the card reader in my Canon MP550 printer, so I get messages like:

[ 386.757298] usb 2-1.5: SerialNumber: 14E912
[ 386.759466] usb-storage 2-1.5:1.2: USB Mass Storage device detected
[ 386.760192] scsi17 : usb-storage 2-1.5:1.2
[ 386.790059] WARNING! power/level is deprecated; use power/control instead
[ 387.774767] scsi 17:0:0:0: Direct-Access Canon MP550 series 0104 PQ: 0 ANSI: 2
[ 387.775169] sd 17:0:0:0: Attached scsi generic sg10 type 0
[ 387.779965] sd 17:0:0:0: [sdi] Attached SCSI removable disk
[ 413.540101] usb 2-1.5: usbfs: interface 2 claimed by usb-storage while 'KSaneIface::Fin' sets config #1
[ 417.598741] usb 2-1.5: usbfs: interface 2 claimed by usb-storage while 'skanlite' sets config #1
[ 418.123578] usb 2-1.5: usbfs: interface 2 claimed by usb-storage while 'skanlite' sets config #1

I blacklisted usblp, as CUPS no longer needs it, so I can print. But when I tried to blacklist usb-storage, it was ignored.

In any case, I do use other usb-storage devices.

Is there a way to tell Ubuntu to ignore the card slot inside the printer, so not use usb-storage?