Hello to everyone, I apologize in advance if I'm doing something wrong writing to this mailing list asking for support but I have some issues I wasn't been able to solve in other forum/mailing list. I'm using a Scientific Linux CERN 4 distro which uses udev version 039-10.22. It is quite old but i cannot update it for various reasons. I have a usb device to be configured by udev and a rule provided by the manufacturer to recognize the device and set permissions to everyone. The rules is the following: # udev rules file for all Opal Kelly VID matches. # This file allows udev to change the mode to 666 (all read/write) # for any Opal Kelly VID. # # For FedoraCore 5 and similar: SUBSYSTEM=="usb_device", SYSFS{idVendor}=="151f", MODE="0666" # For FedoraCore 7 and similar: SUBSYSTEM=="usb", ATTRS{idVendor}=="151f", MODE="0666" As stated in the comments the rule is designed for FedoraCore5 which uses a more recent version of udev. My problem is that using this rule in my configuration only root is allowed to use the device(while it works with FC5). I tried to change this rule a bit trying to adapt it to an older version of udev but I didn't get any success. Can anyone help me? Thank you in advance, Nicola -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html