Hi, I would like to configure my SL5.3 system so that when a USB device (a LabJack U3-LV) is plugged in, the group is automatically set to "adm" so that members of that group can read/write the device. Currently, usb devices are owned as root and to read/write I must run commands as root o r via sudo. The LabJack company suggested the following, which they claim should work on non-debian systems, but it does not work for me. Are there any peculiarities with udev on SL5.3? Add 10-labjack.rules to /etc/udev/rules.d > less /etc/udev/rules.d/10-labjack.rules SUBSYSTEM!="usb_device", ACTION!="add", GOTO="labjack_rules_end" # U3 SYSFS{idVendor}=="0cd5", SYSFS{idProduct}=="0003", GROUP="adm" # U6 SYSFS{idVendor}=="0cd5", SYSFS{idProduct}=="0006", GROUP="adm" # UE9 SYSFS{idVendor}=="0cd5", SYSFS{idProduct}=="0009", GROUP="adm" LABEL="labjack_rules_end" Run /etc/init.d/udev-post or reboot (I rebooted since /etc/init.d/udev-po st does not exist on my machine). Then USB devices should show up as part o f the "adm" group. On my system, the usb devices all show up as root: $ ls -la /dev/bus/usb/*/* crw-r--r-- 1 root root 189, 0 Dec 4 14:46 /dev/bus/usb/001/001 crw-r--r-- 1 root root 189, 128 Dec 4 14:46 /dev/bus/usb/002/001 crw-r--r-- 1 root root 189, 256 Dec 4 14:46 /dev/bus/usb/003/001 crw-r--r-- 1 root root 189, 258 Dec 4 14:46 /dev/bus/usb/003/003 crw-r--r-- 1 root root 189, 384 Dec 4 14:46 /dev/bus/usb/004/001 crw-r--r-- 1 root root 189, 512 Dec 4 14:46 /dev/bus/usb/005/001 Any suggestions? Thank you, James