K3 permission problem

[knc1]

Originally Posted by BusterBrown

I have 4 USB ports on this computer and one external 4-USB hub. I have rearranged the connectors so that the external hub only connects to the printer and leaves 3 open USB's. I connect the USB serial adaptor to one of the connectors on the computer. Hope this makes sense. Thanks again for you help in this matter. Here is the output:

sudo lsusb -vv -d 0711:0230
idVendor 0x0711 Magic Control Technology Corp.
idProduct 0x0230 MCT-232 Serial Port
iSerial 3 159841

The adapter has a burned-in serial number available.
Not sure about that 'space' character in the number (damn Windows devices).
But if that can be used, then USB device serial number ### will become /dev/ttyK3
regardless of how your USB bus devices are arranged.

Or at least that is the intent.

When udev was first introduced, all it could rename was network interfaces.
It has grown up over the years and I am pretty sure that now it can rename __anything__.
Does not mean I can write the appropriate rule - but will give it a try.