Port logging Serial Port via USB with USB expander

[humblewizard]

Port logging with node > serialport is not picking up all the ports connected through a USB expander. I have a 1:4 USB expander with a Prolific RS232->USB plugged into each USB port. The Linux OS sees all of the ports:

  $ sudo setserial -g /dev/ttyUSB*
  /dev/ttyUSB0, UART: 16654, Port: 0x0000, IRQ: 0
  /dev/ttyUSB1, UART: 16654, Port: 0x0000, IRQ: 0
  /dev/ttyUSB2, UART: 16654, Port: 0x0000, IRQ: 0
  /dev/ttyUSB3, UART: 16654, Port: 0x0000, IRQ: 0
  /dev/ttyUSB4, UART: 16654, Port: 0x0000, IRQ: 0

However the serialport code only sees one of them:

  com.list(function (err, ports){
   ports.forEach(function(port){
    console.log(port.comName);
    console.log(port.pnpId);
    console.log(port.manufacturer);
   });
   console.log("Finished Port Logging\n\n");
  });

The port it sees changes if I move them around on the expander module. This is a bit of a road block for me right now.

[jacobrosenthal]

Tracking similar issue at #610