i attached the detail of syslog:

"Feb  1 20:26:40 player kernel: [ 1247.275287] usb 1-1.1: new high-speed 
USB device number 6 using ehci_hcd
Feb  1 20:26:40 player kernel: [ 1247.444488] usb 1-1.1: New USB device 
found, idVendor=05e3, idProduct=0608
Feb  1 20:26:40 player kernel: [ 1247.520511] usb 1-1.1: New USB device 
strings: Mfr=0, Product=1, SerialNumber=0
Feb  1 20:26:40 player kernel: [ 1247.596369] usb 1-1.1: Product: USB2.0 Hub
Feb  1 20:26:40 player kernel: [ 1247.672160] hub 1-1.1:1.0: USB hub found
Feb  1 20:26:40 player kernel: [ 1247.736605] hub 1-1.1:1.0: 4 ports 
detected
Feb  1 20:26:41 player kernel: [ 1248.074036] usb 1-1.1.2: new 
full-speed USB device number 7 using ehci_hcd
Feb  1 20:26:41 player kernel: [ 1248.240627] usb 1-1.1.2: New USB 
device found, idVendor=1044, idProduct=7a02
Feb  1 20:26:41 player kernel: [ 1248.314881] usb 1-1.1.2: New USB 
device strings: Mfr=0, Product=0, SerialNumber=0
Feb  1 20:26:41 player mtp-probe: checking bus 1, device 7: 
"/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2"
Feb  1 20:26:41 player kernel: [ 1248.391648] generic-usb: probe of 
0003:1044:7A02.0006 failed with error -22
Feb  1 20:26:41 player kernel: [ 1248.459226] input: HID 1044:7a02 as 
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.1/input/input7
Feb  1 20:26:41 player kernel: [ 1248.523851] generic-usb 
0003:1044:7A02.0007: input,hiddev0,hidraw0: USB HID v1.11 Mouse [HID 
1044:7a02] on usb-0000:00:1a.0-1.1.2/input1
Feb  1 20:26:41 player kernel: [ 1248.592068] generic-usb 
0003:1044:7A02.0008: input,hidraw1: USB HID v1.11 Device [HID 1044:7a02] 
on usb-0000:00:1a.0-1.1.2/input2
Feb  1 20:26:41 player mtp-probe: bus: 1, device: 7 was not an MTP device
Feb  1 20:26:41 player kernel: [ 1248.729040] usb 1-1.1.4: new low-speed 
USB device number 8 using ehci_hcd
Feb  1 20:26:42 player kernel: [ 1248.917065] usb 1-1.1.4: New USB 
device found, idVendor=060b, idProduct=2270
Feb  1 20:26:42 player kernel: [ 1248.990757] usb 1-1.1.4: New USB 
device strings: Mfr=1, Product=2, SerialNumber=0
Feb  1 20:26:42 player kernel: [ 1249.063713] usb 1-1.1.4: Product: USB 
Keyboard
Feb  1 20:26:42 player kernel: [ 1249.136990] usb 1-1.1.4: Manufacturer: KB
Feb  1 20:26:42 player kernel: [ 1249.219263] input: KB USB Keyboard as 
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.4/1-1.1.4:1.0/input/input8
Feb  1 20:26:42 player kernel: [ 1249.293903] generic-usb 
0003:060B:2270.0009: input,hidraw2: USB HID v1.10 Keyboard [KB USB 
Keyboard] on usb-0000:00:1a.0-1.1.4/input0
Feb  1 20:26:42 player kernel: [ 1249.380643] generic-usb: probe of 
0003:060B:2270.000A failed with error -22
Feb  1 20:26:42 player mtp-probe: checking bus 1, device 8: 
"/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.4"
Feb  1 20:26:42 player mtp-probe: bus: 1, device: 8 was not an MTP device"

2012-01-28 08:12 keltezéssel, Jonathan Nieder írta:

zitev wrote:

quoted

I attached the lsusb output!

Perfect, thanks.

quoted

Bus 001 Device 004: ID 1044:7a02 Chu Yuen Enterprise Co., Ltd

[...]

quoted

     bNumInterfaces          3

[...]

quoted

     Interface Descriptor:
       bInterfaceClass         3 Human Interface Device
       iInterface              2 KB

[...]

quoted

     Interface Descriptor:
       bInterfaceClass         3 Human Interface Device
       iInterface              3 Mouse

[...]

quoted

     Interface Descriptor:
       bInterfaceClass         3 Human Interface Device
       iInterface              4 K8100 Interface

Can you set up usbmon and get a trace of e.g., pressing, holding,
then releasing the "a" key?  See Documentation/usb/usbmon.txt
in the Linux source or the doc directory of the linux-doc-3.2
package for details.

It works roughly like this:

1. Mount debugfs and load the usbmon module:

   mount -t debugfs debugfs /sys/kernel/debug
   modprobe usbmon

2. Start tracing:

   {
     sleep 1; # one second of quiet
     cat /sys/kernel/debug/usb/usbmon/1u>/tmp/mon.out&
     sleep 20; # twenty seconds or so to run the test
     kill $!; # and then stop collecting data
   }

3. Somehow summarize the output.  If it is fairly small, an
attachment is fine; otherwise, excerpts and maybe a link to a
copy that can be downloaded online might work.

Hope that helps,
Jonathan

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