Add more data in ESP420 for USB Port when connected

esp3d/src/core/commands/ESP420.cpp

@@ -240,6 +240,15 @@ void ESP3DCommands::ESP420(int cmd_params_pos, ESP3DMessage* msg) {
       return;
     }
   }
+  if (esp3d_usb_serial_service.isConnected()) {
+    tmpstr = esp3d_usb_serial_service.getVIDString();
+    tmpstr += ":";
+    tmpstr += esp3d_usb_serial_service.getPIDString();
+    if (!dispatchIdValue(json, "Vid/Pid", tmpstr.c_str(), target, requestId,
+                         false)) {
+      return;
+    }
+  }
 #endif  // defined(USB_SERIAL_FEATURE)
 
 #if COMMUNICATION_PROTOCOL == RAW_SERIAL || COMMUNICATION_PROTOCOL == MKS_SERIAL

esp3d/src/modules/usb-serial/usb_serial_service.cpp

@@ -255,6 +255,32 @@ void ESP3DUsbSerialService::connectDevice() {
   }
 }
 
+const char *ESP3DUsbSerialService::getVIDString() {
+  if (_vcp_ptr && _is_connected) {
+    return esp_usb::getVIDString();
+  }
+  return "None";
+}
+const char *ESP3DUsbSerialService::getPIDString() {
+  if (_vcp_ptr && _is_connected) {
+    return esp_usb::getPIDString();
+  }
+  return "None";
+}
+
+uint16_t ESP3DUsbSerialService::getVID() {
+  if (_vcp_ptr && _is_connected) {
+    return esp_usb::getVID();
+  }
+  return 0;
+}
+uint16_t ESP3DUsbSerialService::getPID() {
+  if (_vcp_ptr && _is_connected) {
+    return esp_usb::getPID();
+  }
+  return 0;
+}
+
 // Setup Serial
 bool ESP3DUsbSerialService::begin() {
   _buffer_mutex = xSemaphoreCreateMutex();

esp3d/src/modules/usb-serial/usb_serial_service.h

@@ -56,6 +56,11 @@ class ESP3DUsbSerialService final {
   void connectDevice();
   void setConnected(bool connected);
   void receiveCb(const uint8_t *data, size_t data_len, void *arg = nullptr);
+  bool isConnected() { return _is_connected; }
+  const char * getVIDString();
+  const char * getPIDString();
+  uint16_t getVID();
+  uint16_t getPID();
 
  private:
   uint32_t _baudRate;