Comment 15 for bug 724831

initially (perhaps all the new stuff was not installed yet?)

Apr 5 22:01:42 bshanks dkms_autoinstaller: hid-ntrig (1.1.3): Installing module on kernel 2.6.38-8-generic.

after rebooting,

$ sudo modprobe hid-ntrig
FATAL: Error inserting hid_ntrig (/lib/modules/2.6.38-8-generic/updates/dkms/hid-ntrig.ko): Invalid argument
and in syslog

Apr 5 22:17:12 bshanks kernel: [ 338.328883] usbhid: disagrees about version of symbol hid_output_report
Apr 5 22:17:12 bshanks kernel: [ 338.328892] usbhid: Unknown symbol hid_output_report (err -22)
Apr 5 22:17:12 bshanks kernel: [ 338.329729] usbhid: disagrees about version of symbol hid_unregister_driver
Apr 5 22:17:12 bshanks kernel: [ 338.329733] usbhid: Unknown symbol hid_unregister_driver (err -22)
Apr 5 22:17:12 bshanks kernel: [ 338.330468] usbhid: disagrees about version of symbol __hid_register_driver
Apr 5 22:17:12 bshanks kernel: [ 338.330475] usbhid: Unknown symbol __hid_register_driver (err -22)
Apr 5 22:17:12 bshanks kernel: [ 338.330745] usbhid: disagrees about version of symbol hid_allocate_device
Apr 5 22:17:12 bshanks kernel: [ 338.330747] usbhid: Unknown symbol hid_allocate_device (err -22)
Apr 5 22:17:12 bshanks kernel: [ 338.330993] usbhid: disagrees about version of symbol hid_destroy_device
Apr 5 22:17:12 bshanks kernel: [ 338.330999] usbhid: Unknown symbol hid_destroy_device (err -22)
Apr 5 22:17:12 bshanks kernel: [ 338.333297] usbhid: disagrees about version of symbol hid_set_field
Apr 5 22:17:12 bshanks kernel: [ 338.333303] usbhid: Unknown symbol hid_set_field (err -22)
Apr 5 22:17:12 bshanks kernel: [ 338.334201] usbhid: disagrees about version of symbol hid_check_keys_pressed
Apr 5 22:17:12 bshanks kernel: [ 338.334208] usbhid: Unknown symbol hid_check_keys_pressed (err -22)
Apr 5 22:17:12 bshanks kernel: [ 338.335952] usbhid: disagrees about version of symbol hid_input_report
Apr 5 22:17:12 bshanks kernel: [ 338.335958] usbhid: Unknown symbol hid_input_report (err -22)
Apr 5 22:17:12 bshanks kernel: [ 338.337911] usbhid: disagrees about version of symbol hidinput_find_field
Apr 5 22:17:12 bshanks kernel: [ 338.337918] usbhid: Unknown symbol hidinput_find_field (err -22)
Apr 5 22:17:12 bshanks kernel: [ 338.338420] usbhid: disagrees about version of symbol hid_parse_report
Apr 5 22:17:12 bshanks kernel: [ 338.338426] usbhid: Unknown symbol hid_parse_report (err -22)
Apr 5 22:17:12 bshanks kernel: [ 338.339247] usbhid: disagrees about version of symbol hid_add_device
Apr 5 22:17:12 bshanks kernel: [ 338.339254] usbhid: Unknown symbol hid_add_device (err -22)

$ sudo python report.py > descriptors.txt
Traceback (most recent call last):
  File "report.py", line 13, in <module>
    os.chdir("/sys/bus/usb/drivers/usbhid")
OSError: [Errno 2] No such file or directory: '/sys/bus/usb/drivers/usbhid'

thanks