Please, let's just leave the four we have

No one is suggesting otherwise.

and let
the driver just allocate increasing minor numbers.
If anyone has a product with more than 4 UARTs,
they will have to figure out what to do with the
additional minors.

Since you say no one has ever used more than 4 UARTs,
there are two options:

- Cap the driver at 4 UARTs;
- Assign an extra range of minors for more ports.

Just randomly using some extra minors that aren't
assigned to you isn't such a great idea.


Segher