Portenta H7: Increase to two COM ports; would like to have only one

Hardware Portenta Portenta H7
1

I am currently working on my own library "myUSBSerial.h" which inherits the class "USBSerial" from Portenta's standard library "PluggableUSBSerial.h".

After creating and writing the library, I have created two COM ports. (There was only one until now. See image).
Of these, COM12 does not return a response when connected, and is confusing, so I want to delete it and have only one COM port.

However, this is not going well.
Please give me some advice.

Arduino_COM

myUSBSerial.cpp

#include "stdint.h"
#include "myUSBSerial.h"
#include "USB/USBCDC.h"

using namespace arduino;

MyUSBSerial::MyUSBSerial(USBPhy *phy, uint16_t vendor_id, uint16_t product_id, uint16_t product_release) : 
  USBSerial::USBSerial(phy, vendor_id, product_id, product_release) {

    //_SerialUSB.~USBSerial();
    //USBSerial _SerialUSB(false);
}


void MyUSBSerial::line_coding_changed(int baud, int bits, int parity, int stop)
{
    USBSerial::line_coding_changed(baud, bits, parity, stop);

}

void MyUSBSerial::beginSt(unsigned long baud) {

  begin(baud);
}

myUSBSerial.h

#ifndef MYUSBSERIAL_H
#define MYUSBSERIAL_H

#include "Arduino.h"

#include "stdint.h"

#include "USB/PluggableUSBSerial.h"
#include "USB/USBCDC.h"
#include "usb_phy_api.h"
#include "mbed.h"

namespace arduino {
  
class MyUSBSerial : public ::USBSerial  {

    public:
      MyUSBSerial(USBPhy *phy, uint16_t vendor_id = 0x1f00, uint16_t product_id = 0x2012, uint16_t product_release = 0x0001);
      virtual ~MyUSBSerial(){}
      
      void line_coding_changed(int baud, int bits, int parity, int stop) override;

      void beginSt(unsigned long baud);

      void beginSt(unsigned long baud, uint16_t config);
      
      uint32_t counter() {
        return 334;
      }
  };
}
#endif

sketch.ino

#include "myUSBSerial.h"

MyUSBSerial mySerial(get_usb_phy());

const long BAUD_RATE = 115200L;
void setup() {
   mySerial.beginSt(BAUD_RATE);

   delay(1000);
}


void loop() {
  String request  = "";

  bool isCmd = false;     // Flag: delimiter
  bool isCR = false;      // Flag: <CR>

  char thisChar = 0;      // received character

while(mySerial.available() >0) {
    thisChar = mySerial.read();
    request += thisChar;

    if(thisChar == '\n' && isCR == true) {
      isCmd = true;
      break;
    }

    if(thisChar == '\r')
      isCR = true;
    else
      isCR = false;
  }
  
  if(isCmd) {
    mySerial.print("Recieve: ");
    mySerial.print(request);
   }
}
2

what computer software do you use?
here's an example of what i'm talking about: windows 10.

3

Thanks for the reply.
I use windows 10 Pro.

4

you can go into "device manager", in "computer management", click "view", and select "hidden devices" and click "COM & LPT", right click your COM port, and click "delete" or "uninstall".
side note: "hidden devices" are devices that aren't being used.