Thank you for digging, the rules are indeed the problem. I found the rule too, eventually, but as far as I can tell it's only documented in the sources of the module.
As you say, the serial number is far too wide a match : devices with a serial number in that range are widely used. I would suggest that the default FTDI serial numbers are never going to be suitable for use as an identifying range unless a manufacturer buys them that way .. and it would be a lot easier to simply put a manufacturer-specific string in there, which is easily supported at no cost by FTDI's tools. I don't see how a generic rule can therefore be written for this sort of device : if it can't be identified uniquely from the USB details then the user needs to get involved (perhaps by choosing a rule script from a list, and confirming the serial number of the specific device). -- devkit-power keeps /dev/ttyUSB0 open, misdetecting Watts-Up power monitor https://bugs.launchpad.net/bugs/507247 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs