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USB /dev/tty monitor

This script prints out changes in the USB TTY submodule and the /dev/tty device assigned to a given USB port.

Example

Here is an example of running the script and attaching different USB to serial converters to a PC:

USB Port :: 3-1:1.0 :: /dev/ttyACM0
USB Port :: 2-1:1.0 :: /dev/ttyACM1
USB Port :: 2-1:1.0 :: Unplugged
USB Port :: 2-1:1.0 :: /dev/ttyACM1
USB Port :: 2-1:1.0 :: Unplugged
USB Port :: 3-1:1.0 :: Unplugged
USB Port :: 3-1:1.0 :: /dev/ttyACM0
USB Port :: 3-1:1.0 :: Unplugged
USB Port :: 2-1:1.0 :: /dev/ttyACM0
USB Port :: 3-1:1.0 :: /dev/ttyACM1
USB Port :: 3-1:1.0 :: Unplugged
USB Port :: 3-1:1.0 :: /dev/ttyACM1
USB Port :: 1-4:1.0 :: /dev/ttyACM2
USB Port :: 1-4:1.0 :: Unplugged
USB Port :: 1-3:1.0 :: /dev/ttyACM2
USB Port :: 1-3:1.0 :: Unplugged
USB Port :: 3-1:1.0 :: Unplugged
USB Port :: 2-1:1.0 :: Unplugged

Explanation:

  • 2-1:1.0 - USB Bus 2 Port 1
  • 1-3:1.0 - USB Bus 1 Port 3
  • /dev/ttyACM0 - Device path to the TTY