Sorry Mark - I just realised that I sent this mail to you a few days
ago rather than the alug list.
2009/9/29 MJ Ray <mjr(a)phonecoop.coop>:
> Jenny Hopkins wrote:
>> I've got a problem with an HP Photosmart R507 camera on an ubuntu
>> jaunty system. The camera is set to behave as a disk drive. When
>> plugged into a debian system it is assigned to be /dev/hdc1 and can be
>> mounted. However, with the ubuntu, it won't assign a device. here is
>> the tail of dmesg:
>>
>> [14522.580027] usb 4-4: new full speed USB device using ohci_hcd and address 4
>> [14522.805646] usb 4-4: configuration #1 chosen from 1 choice
>> [14522.815803] scsi8 : SCSI emulation for USB Mass Storage devices
>> [14522.840286] usb-storage: device found at 4
>> [14522.840295] usb-storage: waiting for device to settle before scanning
>>
>> lsusb shows the camera listed.
>
> Doesn't matter. It's not recognising it as a SCSI disk. It would show
> something like:
>
> scsi 0:0:0:0: Direct-Access CBM Flash Disk 5.00 PQ: 0 ANSI: 2
> usb-storage: device scan complete
>
> Does it complete the scan?
The only time i have anything like that was after reboot, when i got:
[ 22.880604] scsi scan: INQUIRY result too short (5), using 36
[ 22.880618] scsi 6:0:0:0: Direct-Access HP PhotoSmart
R507 A001 PQ: 0 ANSI: 0
[ 22.896587] sd 6:0:0:0: [sdb] 498176 512-byte hardware sectors:
(255 MB/243 MiB)
[ 22.901837] sd 6:0:0:0: [sdb] Write Protect is off
[ 22.901846] sd 6:0:0:0: [sdb] Mode Sense: 0f 00 00 00
[ 22.901853] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 22.921851] sd 6:0:0:0: [sdb] 498176 512-byte hardware sectors:
(255 MB/243 MiB)
[ 22.928857] sd 6:0:0:0: [sdb] Write Protect is off
[ 22.928865] sd 6:0:0:0: [sdb] Mode Sense: 0f 00 00 00
[ 22.928870] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 22.928883] sdb: sdb1
[ 22.948024] sd 6:0:0:0: [sdb] Attached SCSI removable disk
[ 22.948163] sd 6:0:0:0: Attached scsi generic sg1 type 0
However trying to mount either sdb1 or sg0 denied they existed.
Otherwise the plugging and unplugging of the camera just shows:
[14522.580027] usb 4-4: new full speed USB device using ohci_hcd and address 4
[14522.805646] usb 4-4: configuration #1 chosen from 1 choice
[14522.815803] scsi8 : SCSI emulation for USB Mass Storage devices
[14522.840286] usb-storage: device found at 4
[14522.840295] usb-storage: waiting for device to settle before scanning
and it never does.
>Have you any suspicious-looking stalled
> processes? Can you remove the USB devices and rmmod usb-storage or
> does it complain that the module is in use? If so, something has
> failed badly in the USB drivers and only a reboot will clear it, in my
> experience.
>
The above reboot info suggests this could be a pointer.
I'll check for stalled processes and do the rmmod things you suggest
when i'm next in the same room as the camera and ubuntu over the next
few days.
> I've one camera (the Nisis DV4) which refuses to work on one
> workstation in a similar way at the moment. I'm sure it used to work.
> I think some USB devices are less than perfect and different kernel
> versions trigger the problems.
>
>> I'm puzzled that lsmod doesn't show any e/ohci_usb type modules and
>> won't probe for them, but maybe this is an ubuntu thing.
>
> "Won't probe for them"? Do you have the .ko files in /lib/modules?
> Anyway, I don't think that's related.
>
Ok, I'll ignore it then.
Thanks for the pointers - it would be great to go there and fix it
instead of flapping around again.
Someone muttered something about firmware - would there be any way i
can check that out?
Many thanks,
Jenny
