I'm on 18.06.1, r7258-5eb055306f (I said "Chaos Calmer" previously but that's wrong) and I've got some problems with two CP2102 based USB to Serial TTL adaptors.
First of all (and least important as I can work around it if necessary) if I have both devices plugged into my USB hub they keep resetting over and over again.
So, for example if they are devices 2 and 3 after a while they both reset and are re-enumerated as 4 and 5 then again as 6 and 7 and so on.
If I have only one device plugged in at a time if enumerates as device 2 and stays as it was from then on.
My more important problem is that I can't get
/dev/ttyUSB0 to appear in the
I've also been messing about with an
/etc/hotplug.d/usb/99-test script and it doesn't have a
DEVICE_NAME environment variable although everything like
VENDOR and suchlike are there as normal.
kmod-usb-serial-cp210x loaded and it shows up as expected when I do an