4 USB TTL uarts on a USB hub - keeping them straight

[Robert Moskowitz]

On 08/22/2014 05:06 PM, Joe Zeff wrote:
> On 08/22/2014 02:00 PM, Robert Moskowitz wrote:
>> I found out about the lsusb command.
>>
>> It is reporting that they all have the same ID:
>
> Of course they do.  They all have the same characteristics so there's 
> nothing to tell them apart until you attach something to them.
They are by the same company and I bought a lot of 5, so they are the 
same.  But no burnt in USB device number.  Nothing like RFID for USB 
devices.  Sigh.

Thus I need to bring up screen and get the host to respond to figure out 
which host is which ttyusb.