Hi Dave,
I think whether a udev rule needs to be created depends on whether the ftdi_sio module knows about the vendor/product ID. If the module already has an alias for the necessary vendor/product ID then the rule is already built-in.
I figured since I'd had similar trouble with a FT232H cable just yesterday, I'd share my solution. I agree with your comments - if the FTDI device is already supported in the version of the driver he is using, then its another issue. Cheers, Dave
