[Tutor] Allocation of serial ports

[Phil]

Thank you for reading this.

This question is not specifically related to Python, however, someone 
may be able to point me in the right direction. The operating system in 
use is Linux.

I have a twin USB to serial adaptor that gives me ttyUSB0 and ttyUSB1 
and my programme uses both of those ports. The problem is the random 
allocation of the ports. Port A, for example, could be either ttyUSB0 or 
ttyUSB1.

So, how can I ensure that port A is always ttyUSB0 or how can I adapt my 
programme so that the address of the port is known to the programme?


-- 
Regards,
Phil