# Virtual Serial Port

### Adding a Serial Port

{% hint style="info" %}
**Note**: Adding a Serial port is not supported in macOS virtual machines.
{% endhint %}

**--device-add serial** {**--device** <*name*>|**--output** <*file*>|**--socket** <*name*>

\[**--socket-mode** <**server**|**client**>]}

Modify a serial port

**--device-set** <*port\_name*> {**--device** <*name*>|**--output** <*file*>|**--socket** <*name*>

\[**--socket-mode** <**server**|**client**>]}

#### Parameters

*port\_name*: the name of the port to modify (**--device-set** command only). To obtain the list of the available ports, use the *prlctl list --info* command.

**--device**: the number of the host computer serial port that will be used by the virtual machine.

**--output**: the path to the file where the output of the virtual serial port will be sent.

**--socket**: the name of the host computer socket to which the serial port will be connected.

**--socket-mode**: the socket operation mode.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.parallels.com/landing/parallels-desktop-developers-guide/command-line-interface-utility/manage-virtual-machines-from-cli/virtual-machine-configuration-tasks/device-management/virtual-serial-port.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
