[Nut-upsuser] USB problems

[James]

  On 05/10/10 08:31, Charles Lepple wrote:
> On Mon, May 10, 2010 at 1:49 AM, James<bjlockie at lockie.ca>  wrote:
>> I was getting:
>> "Can't claim USB device [0764:0501]: could not detach kernel driver from
>> interface 0: Operation not permitted"
>> so I manually installed the udev rules the source (I installed the Gentoo
>> ebuild).
>>
>> I am now getting:
>>
>> #  upsdrvctl start
>> 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)
>>
>> which seems a bit better.
> This seems to be a recent regression. What kernel version are you using?
>
>> $ lsusb
>> Bus 002 Device 005: ID 0764:0501 Cyber Power System, Inc. CP1500 AVR UPS
>>
>> The udev rule is:
>> #  Dynex DX-800U?  - usbhid-ups
>> ATTR{idVendor}=="0764", ATTR{idProduct}=="0501", MODE="664", GROUP="nobody"
> Can you also post the output from 'lsusb -vvv -d0764:', preferably run as root?
>
> The vendor name from lsusb (without -v) is usually a good guess, but
> often it is the name of the OEM (lsusb looks that up in a static
> number-to-name mapping file). The product and vendor strings returned
> by 'lsusb' with one or more '-v' flags are usually customized to match
> the name printed on the unit.
>
$ sudo lsusb -vvv -d0764:

Bus 002 Device 004: ID 0764:0501 Cyber Power System, Inc. CP1500 AVR UPS
Device Descriptor:
   bLength                18
   bDescriptorType         1
   bcdUSB               1.10
   bDeviceClass            0 (Defined at Interface level)
   bDeviceSubClass         0
   bDeviceProtocol         0
   bMaxPacketSize0         8
   idVendor           0x0764 Cyber Power System, Inc.
   idProduct          0x0501 CP1500 AVR UPS
   bcdDevice            0.01
   iManufacturer           3 CPS
   iProduct                1 CP550HG
   iSerial                 0
   bNumConfigurations      1
   Configuration Descriptor:
     bLength                 9
     bDescriptorType         2
     wTotalLength           34
     bNumInterfaces          1
     bConfigurationValue     1
     iConfiguration          0
     bmAttributes         0x80
       (Bus Powered)
     MaxPower               50mA
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        0
       bAlternateSetting       0
       bNumEndpoints           1
       bInterfaceClass         3 Human Interface Device
       bInterfaceSubClass      0 No Subclass
       bInterfaceProtocol      0 None
       iInterface              0
         HID Device Descriptor:
           bLength                 9
           bDescriptorType        33
           bcdHID               1.10
           bCountryCode           33 US
           bNumDescriptors         1
           bDescriptorType        34 Report
           wDescriptorLength     376
          Report Descriptors:
            ** UNAVAILABLE **
       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:     0x0000
   (Bus Powered)