[Nut-upsuser] howto handle USB serial port keeps changing

[James Harper]

> 
> Hi
> 
> I have a serial UPS connected using a serial2USB device. Usually it is
> port=/dev/ttyUSB0, but occasionally i need port=/dev/ttyUSB1. How do
you guys
> handle something like this?
> 
> 

Could some udev persistent device naming rules help with this? I've done
that with usb harddisks before but not serial ports.

James