On 06/19/2018 06:45 AM, Russell Senior wrote:
Here is someone 10 years ago, using debian:


https://jonmccune.wordpress.com/2008/12/09/prolific-pl-25a1-usb-to-usb-bridge-in-linux/

What your distribution does (even if it is still Debian) might be different
today, but it looks like it creates a network interface (usbN, in this
case).  Again, your mileage might vary, but the dmesg output should tell
you what interface name is assigned.

You could also compare the output before and after plugging in the cable of
the command: ip addr

For example:

  ip addr > /tmp/before-plugging.txt
  [plug in device]
  ip addr > /tmp/after-plugging.txt
  diff -u /tmp/before-plugging.txt /tmp/after-plugging.txt

The difference should be the newly created network interface.

The output of the "diff" command was visually cluttered.
I found it easier to just run "ip addr" for each of my test cases. None of the tests exceeded the display capability of MATE Terminal.

I have a four port USB expander. I did of one/both end(s) of cable plugged in and using permutation of which port(s) used.

All results were of the form:
8: enp0s29u1u1u4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast 
state UNKNOWN group default qlen 1000
    link/ether 5a:29:e7:d9:d6:dd brd ff:ff:ff:ff:ff:ff

ONLY
 <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN 
group default qlen 1000
was consistent throughout.

All other content was dependent ONLY on physical port used.

More later.




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