[CentOS] USB Serial ports (ttyACMn) CentOS 6.7 (64-bit) vs. CentOS 6.7 (64-bit)

Mon Feb 15 23:52:19 UTC 2016
Warren Young <wyml at etr-usa.com>

On Feb 15, 2016, at 10:34 AM, Mike - st257 <silvertip257 at gmail.com> wrote:
> I have not yet found a USB-to-serial adapter detected as /dev/ttyACM1.
> Try /dev/ttyUSB0 ?

Both naming schemes are correct, depending on the *type* of USB to serial converter.  The difference comes down to a low-level USB implementation detail which I’ve never bothered to commit to long-term memory.

I just say “dmesg | tail” or “ls -ltr /dev” shortly after plugging the device in.  One of the two tells me which scheme that particular device uses.