I'm using ubuntu 18.04. I have connected two devices to serial ports.
to ttyACM0 through usb and
to rfcomm1 via bluetooth.
I have read write permissions for the both ports.
I wrote a python3 program to get the list of device names which are connected to serial ports. It gives following output.
1 ttyACM0 2 n/a
it shows only the name of the device connected through usb port.
but not the bluetooth serial device.
why is that? how to get the name of other devices?
I tried with "sudo" also.
and whats the meaning of "n/a" ?