USB-device triggers endless device checking [SOLVED]

Question

After installing Arch Linux on my computer (Intel P67 chipset), an endless loop of warning/error messages about a USB-device fills up my messages.log (and slows down my computer a little bit).
Three sample iterations (but it loops through all device numbers constantly):
May 25 12:18:06 localhost kernel: [ 5327.110029] usb 3-1.3: new full speed USB device using ehci_hcd and address 6
May 25 12:18:06 localhost mtp-probe: checking bus 3, device 6: "/sys/devices/pci0000:00/0000:00:1d.0/usb3/3-1/3-1.3"
May 25 12:18:06 localhost mtp-probe: bus: 3, device: 6 was not an MTP device
May 25 12:18:06 localhost mtp-probe: checking bus 3, device 6: "/sys/devices/pci0000:00/0000:00:1d.0/usb3/3-1/3-1.3"
May 25 12:18:06 localhost mtp-probe: bus: 3, device: 6 was not an MTP device
May 25 12:18:06 localhost kernel: [ 5327.436153] usb 3-1.3: USB disconnect, address 6
May 25 12:18:06 localhost kernel: [ 5327.622942] usb 3-1.3: new full speed USB device using ehci_hcd and address 7
May 25 12:18:06 localhost mtp-probe: checking bus 3, device 7: "/sys/devices/pci0000:00/0000:00:1d.0/usb3/3-1/3-1.3"
May 25 12:18:06 localhost mtp-probe: bus: 3, device: 7 was not an MTP device
May 25 12:18:06 localhost mtp-probe: checking bus 3, device 7: "/sys/devices/pci0000:00/0000:00:1d.0/usb3/3-1/3-1.3"
May 25 12:18:06 localhost mtp-probe: bus: 3, device: 7 was not an MTP device
May 25 12:18:07 localhost kernel: [ 5327.947972] usb 3-1.3: USB disconnect, address 7
May 25 12:18:07 localhost kernel: [ 5328.132607] usb 3-1.3: new full speed USB device using ehci_hcd and address 8
May 25 12:18:07 localhost mtp-probe: checking bus 3, device 8: "/sys/devices/pci0000:00/0000:00:1d.0/usb3/3-1/3-1.3"
May 25 12:18:07 localhost mtp-probe: bus: 3, device: 8 was not an MTP device
May 25 12:18:07 localhost mtp-probe: checking bus 3, device 8: "/sys/devices/pci0000:00/0000:00:1d.0/usb3/3-1/3-1.3"
May 25 12:18:07 localhost mtp-probe: bus: 3, device: 8 was not an MTP device
May 25 12:18:07 localhost kernel: [ 5328.459533] usb 3-1.3: USB disconnect, address 8
The device that triggers these messages is a ColorVision Spyder (color calibration). When I unplug the Spyder, the messages loop stops; and when I plug the device in again, it resumes. See also http://lists.fedoraproject.org/pipermai … 99834.html for a Fedora-user experiencing the same problems.
The system is up to date with all packages; the kernel is the standard kernel26. As far as I'm aware of, this problem does not occur on my Ubuntu install (10.10, 11.04).
I guess the 'lsusb -v' output for the Spyder may be relevant:
Bus 003 Device 053: ID 085c:0300 ColorVision, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x085c ColorVision, Inc.
idProduct 0x0300
bcdDevice 1.06
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 4
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 5
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Device Status: 0x000a
(Bus Powered)
Remote Wakeup Enabled
Can I stop this somehow (short of unplugging the Spyder when I'm in Arch)? Should I file a bug report, and where? Your help will be greatly appreciated.
(Btw, this is my first post here. Apart from this problem, my experiences with Arch are great.)
Last edited by hermanr (2012-02-12 15:45:11)

Answer 1

Thanks for your interest in my topic.
ewaller wrote:
Do you have a file called /etc/udev/rules.d/libmtp.rules on your system?
Is your Device listed in that file?
I assume you have installed libmtp. Yes?
Libmtp is installed on my system as a dependency of banshee; I have no use for it. The libmtp.rules file is installed in /lib/udev/rules.d (not in /etc/udev/rules.d), but my device is not listed in this file (or in any other).
I have tried to make a specific udev rule for my device in /etc/udev/rules.d/22-color.rules:
SUBSYSTEM==”usb_device”, SYSFS{idVendor}==”085c″, SYSFS{idProduct}==”0300″, MODE=”660″, GROUP=”scanner”
This line was suggested on some other site for the use of the Spyder under Linux. My knowledge of udev is very limited, but it was worth trying. It did not work, however.