Hello, all, I had been using NUT's Ubuntu package (64 bit) with no problems until upgrading to Ubuntu 11.04. Now, I get the following message when I try usbhid-ups:
$ sudo /lib/nut/usbhid-ups -a mybelkin Network UPS Tools - Generic HID driver 0.35 (2.6.0) USB communication driver 0.31 Can't claim USB device [050d:1100]: could not detach kernel driver from interface 0: Operation not permitted ups.conf: [mybelkin] driver = usbhid-ups port = auto desc = "Belkin 1200 VA UPS" The udev rule seems OK: # F6C1100-UNV, F6C1200-UNV - usbhid-ups ATTR{idVendor}=="050d", ATTR{idProduct}=="1100", MODE="664", GROUP="nut" Using udevadm monitor and plugging in the USB: KERNEL[1308961682.706704] add /devices/pci0000:00/0000:00:1d.0/usb6/6-1 (usb) KERNEL[1308961682.709615] add /devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1:1.0 (usb) KERNEL[1308961682.709674] add /devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1:1.0/0003:050D:1100.0007 (hid) KERNEL[1308961682.979776] add /devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1:1.0/usb/hiddev0 (usb) KERNEL[1308961682.979802] add /devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1:1.0/0003:050D:1100.0007/hidraw/hidraw0 (hidraw) However, the usb devices are created in root group and without read access to nut group. $ ls -l /dev/usb crw------- 1 root root 180, 96 2011-06-24 20:43 hiddev0 Package information: $ apt-cache showpkg nut Package: nut Versions: 2.6.0-1ubuntu3 (/var/lib/apt/lists/ubuntu.media.mit.edu_ubuntu_dists_natty_main_binary-amd64_Packages) (/var/lib/dpkg/status) Description Language: File: /var/lib/apt/lists/ubuntu.media.mit.edu_ubuntu_dists_natty_main_binary-amd64_Packages MD5: 1bb170829951b1b6cfee27c4bdc599b8 Reverse Depends: nut-xml,nut 2.2.2 collectd-core,nut nut-snmp,nut 1.4.0 nut-snmp,nut 1.4.1-pre1 nut-cgi,nut 1.1.11 nut-cgi,nut Dependencies: 2.6.0-1ubuntu3 - libc6 (2 2.4) libupsclient1 (2 2.4.1) libusb-0.1-4 (2 2:0.1.12) libwrap0 (2 7.6-4~) adduser (0 (null)) lsb-base (2 3.0-6) udev (2 136-1) nut-cgi (0 (null)) nut-snmp (0 (null)) nut-dev (0 (null)) nut-xml (0 (null)) bash-completion (0 (null)) nut-dev (3 2.2.2) nut-doc (0 (null)) nut-hal-drivers (0 (null)) nut-usb (3 2.1.0-3) ups-monitor (0 (null)) nut-doc (0 (null)) Provides: 2.6.0-1ubuntu3 - ups-monitor nut-usb nut-doc Reverse Provides: ---------------------- So, what to try next? Do I have a udev problem? Thanks for any pointers. Martin -- Martin Ewing Branford, Connecticut martin.s.ew...@gmail.com
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