[Nut-upsuser] USB problems

[James]

  On 05/10/10 14:37, Jason Englander wrote:
> On Mon, 10 May 2010, James wrote:
>
>> Network UPS Tools - UPS driver controller 2.4.3
>> Network UPS Tools - Generic HID driver 0.34 (2.4.3)
>> USB communication driver 0.31
>> Using subdriver: CyberPower HID 0.3
>> libusb_get_report: could not claim interface 0: Device or resource busy
>> Got disconnected by another driver: Device or resource busy
>> Can't initialize data from HID UPS
>> Driver failed to start (exit status=1)
>
> FYI, I got that error yesterday with NUT 2.4.3, kernel 2.6.33.3, and a 
> CyberPower CP1500AVRLCD using usbhid-ups and it seems fine after 
> applying this patch:
>
> http://boxster.ghz.cc/projects/nut/changeset/2407?format=diff&new=2407
I applied the patch and it loaded the driver once. :-(
I had problems with starting upsd so I tried to fix it but I think the 
driver crashed.
Now I can't restart it even after rebooting.

nut-2.4.3/drivers $ sudo ./usbhid-ups -a CP550SLG -D -D
Network UPS Tools - Generic HID driver 0.34 (2.4.3)
USB communication driver 0.31
    0.000000     debug level is '2'
    0.000408     upsdrv_initups...
    0.000583     Checking device (0764/0501) (002/007)
    0.000611     - VendorID: 0764
    0.000617     - ProductID: 0501
    0.000622     - Manufacturer: unknown
    0.000626     - Product: unknown
    0.000631     - Serial Number: unknown
    0.000636     - Bus: 002
    0.000640     Trying to match device
    0.000655     Device matches
    0.000663     failed to claim USB device: could not claim interface 
0: Operation not permitted
    0.000671     failed to detach kernel driver from USB device: could 
not detach kernel driver from interface 0: Operation not permitted
    0.000678     failed to claim USB device: could not claim interface 
0: Operation not permitted
    0.000684     failed to detach kernel driver from USB device: could 
not detach kernel driver from interface 0: Operation not permitted
    0.000691     failed to claim USB device: could not claim interface 
0: Operation not permitted
    0.000697     failed to detach kernel driver from USB device: could 
not detach kernel driver from interface 0: Operation not permitted
    0.000703     failed to claim USB device: could not claim interface 
0: Operation not permitted
    0.000710     failed to detach kernel driver from USB device: could 
not detach kernel driver from interface 0: Operation not permitted
    0.000716     Can't claim USB device [0764:0501]: could not detach 
kernel driver from interface 0: Operation not permitted