[PLUG] USB Camera

Marvin Kosmal mkosmal at gmail.com
Wed Mar 24 20:39:06 UTC 2010


On 3/24/10, D. Cooper Stevenson <cooper at cooper.stevenson.name> wrote:
> Hi Marvin,
>
> The good news: your system is seeing the new device and is trying to
> assign it as a mass storage device, as it should.
>
> The bad news (as you've no doubt surmised): the device is kicked off the
> bus.
>
> A poster submitted a similar question here
> <http://www.linuxquestions.org/questions/linux-hardware-18/mounting-a-usb-hdd-370812/>.
> This poster's condition doesn't exactly replicate your post but it's a
> reasonable start as your system's USB detection stack is basically
> intact. In that case, the system was using USB 1.0 by default, your
> computer's trouble may be similar.
>
> Perform the following as root and re-plug in the device:
>
>   modprobe ehci_hcd
>
> If that doesn't work--and I offer a caution if you have a USB keyboard
> and/or mouse--try the following:
>
>    rmmod ohci_hcd
>    modprobe ehci_hcd
>
> Also, make sure your cable is rated USB 2.0. I have seen instances where
> high-speed USB drives failed to associate correctly as the cable was
> rated only to the 1.0 standard.
>
>
> Best,
>
>
> -Cooper
>
> On 03/24/10 12:33, Marvin Kosmal wrote:
>> On 3/24/10, D. Cooper Stevenson <cooper at cooper.stevenson.name> wrote:
>>
>>> On 03/24/10 12:07, Marvin Kosmal wrote:
>>>
>>>> Hi...
>>>>
>>>>
>>> Hi, Marvin.
>>>
>>>> I have this new computer and Fedora 12...
>>>>
>>>> Just tried to use my camera...
>>>>
>>>> The computer/OS does not recognize it....
>>>>
>>>>
>>> Okay.
>>>
>>>> I used to plugging it in and having the box/OS recognize it..
>>>>
>>>> NOT so..
>>>>
>>>> Where do I start looking?
>>>>
>>>>
>>> Execute the following command on the command line and post the results
>>> of /tmp/dmesg.txt:
>>>
>>>   dmesg > /tmp/dmesg.txt
>>>
>>> Also, have a look (and post) /var/log/messages.
>>>
>>> From this we can get a good start. Does the USB subsystem recognize a
>>> device was added? Does your new system have the necessary modules
>>> installed? Do we simply need to mount the camera's mass storage?
>>>
>>> Best,
>>>
>>>
>>> -Cooper
>>>
>>> --
>>> D. Cooper Stevenson
>>> ph:  541.971.0366
>>> em:  cooper at cooper dot stevenson dot name
>>> www: http://cooper.stevenson.name
>>>
>>>
>>>
>>>
>>
>>
>> This is Kinda long  and I have chopped a lot out..
>>
>> Mar 24 12:16:47 Theranch kernel: usb 2-4: new full speed USB device
>> using ohci_hcd and address 2
>> Mar 24 12:16:47 Theranch kernel: usb 2-4: New USB device found,
>> idVendor=07b4, idProduct=0105
>> Mar 24 12:16:47 Theranch kernel: usb 2-4: New USB device strings:
>> Mfr=1, Product=2, SerialNumber=3
>> Mar 24 12:16:47 Theranch kernel: usb 2-4: Product: C740UZ
>> Mar 24 12:16:47 Theranch kernel: usb 2-4: Manufacturer: OLYMPUS
>> Mar 24 12:16:47 Theranch kernel: usb 2-4: SerialNumber: 000255503860
>> Mar 24 12:16:47 Theranch kernel: usb 2-4: configuration #1 chosen from 1
>> choice
>> Mar 24 12:16:47 Theranch kernel: Initializing USB Mass Storage driver...
>> Mar 24 12:16:47 Theranch kernel: scsi6 : SCSI emulation for USB Mass
>> Storage devices
>> Mar 24 12:16:47 Theranch kernel: usbcore: registered new interface
>> driver usb-storage
>> Mar 24 12:16:47 Theranch kernel: USB Mass Storage support registered.
>> Mar 24 12:16:50 Theranch kernel: usb 2-4: USB disconnect, address 2
>> Mar 24 12:16:56 Theranch kernel: usb 2-4: new full speed USB device
>> using ohci_hcd and address 3
>> Mar 24 12:16:56 Theranch kernel: usb 2-4: New USB device found,
>> idVendor=07b4, idProduct=0105
>> Mar 24 12:16:56 Theranch kernel: usb 2-4: New USB device strings:
>> Mfr=1, Product=2, SerialNumber=3
>> Mar 24 12:16:56 Theranch kernel: usb 2-4: Product: C740UZ
>> Mar 24 12:16:56 Theranch kernel: usb 2-4: Manufacturer: OLYMPUS
>> Mar 24 12:16:56 Theranch kernel: usb 2-4: SerialNumber: 000255503860
>> Mar 24 12:16:56 Theranch kernel: usb 2-4: configuration #1 chosen from 1
>> choice
>> Mar 24 12:16:56 Theranch kernel: scsi7 : SCSI emulation for USB Mass
>> Storage devices
>> Mar 24 12:17:01 Theranch kernel: scsi 7:0:0:0: Direct-Access
>> OLYMPUS  C740UZ           1.00 PQ: 0 ANSI: 2
>> Mar 24 12:17:01 Theranch kernel: sd 7:0:0:0: Attached scsi generic sg2
>> type 0
>> Mar 24 12:17:01 Theranch kernel: sd 7:0:0:0: [sdb] 33554432 512-byte
>> logical blocks: (17.1 GB/16.0 GiB)
>> Mar 24 12:17:01 Theranch kernel: sd 7:0:0:0: [sdb] Write Protect is off
>> Mar 24 12:17:01 Theranch kernel: sd 7:0:0:0: [sdb] Assuming drive
>> cache: write through
>> Mar 24 12:17:01 Theranch kernel: sd 7:0:0:0: [sdb] Assuming drive
>> cache: write through
>> Mar 24 12:17:01 Theranch kernel: sdb: sdb1
>> Mar 24 12:17:01 Theranch kernel: sd 7:0:0:0: [sdb] Assuming drive
>> cache: write through
>> Mar 24 12:17:01 Theranch kernel: sd 7:0:0:0: [sdb] Attached SCSI removable
>> disk
>> Mar 24 12:17:01 Theranch kernel: usb 2-4: reset full speed USB device
>> using ohci_hcd and address 3
>> Mar 24 12:17:34 Theranch kernel: usb 2-4: reset full speed USB device
>> using ohci_hcd and address 3
>> Mar 24 12:17:44 Theranch kernel: usb 2-4: reset full speed USB device
>> using ohci_hcd and address 3
>> Mar 24 12:18:00 Theranch kernel: usb 2-4: reset full speed USB device
>> using ohci_hcd and address 3
>> Mar 24 12:18:01 Theranch kernel: usb 2-4: reset full speed USB device
>> using ohci_hcd and address 3
>> Mar 24 12:18:11 Theranch kernel: usb 2-4: reset full speed USB device
>> using ohci_hcd and address 3
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: Device offlined - not
>> ready after error recovery
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: [sdb] Unhandled error code
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: [sdb] Result:
>> hostbyte=DID_ABORT driverbyte=DRIVER_OK
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: [sdb] CDB: Read(10): 28
>> 00 01 ff ff 80 00 00 08 00
>> Mar 24 12:18:11 Theranch kernel: end_request: I/O error, dev sdb,
>> sector 33554304
>> Mar 24 12:18:11 Theranch kernel: Buffer I/O error on device sdb,
>> logical block 4194288
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:11 Theranch kernel: sd 7:0:0:0: rejecting I/O to offline
>> device
>> Mar 24 12:18:13 Theranch ntpd[1328]: synchronized to 64.6.144.6, stratum 2
>> Mar 24 12:18:13 Theranch ntpd[1328]: time reset +0.489161 s
>> Mar 24 12:18:13 Theranch ntpd[1328]: kernel time sync status change 2001
>> Mar 24 12:24:10 Theranch ntpd[1328]: synchronized to 64.6.144.6, stratum 2
>> _______________________________________________




[root at Theranch 24_March_2010]# modprobe ehci_hcd
WARNING: Deprecated config file /etc/modprobe.conf, all config files
belong into /etc/modprobe.d/.
FATAL: Module ehci_hcd not found.
[root at Theranch 24_March_2010]# rmmod ohci_hcd
ERROR: Module ohci_hcd does not exist in /proc/modules
[root at Theranch 24_March_2010]# modprobe ehci_hcd
WARNING: Deprecated config file /etc/modprobe.conf, all config files
belong into /etc/modprobe.d/.
FATAL: Module ehci_hcd not found.
[root at Theranch 24_March_2010]#



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