Function close 

pub fn close<R: Runtime>(
    _app: AppHandle<R>,
    serial: State<'_, SerialPort<R>>,
    path: String,
) -> Result<(), Error>

Closes a serial port

Closes the specified serial port and releases all associated resources. The port must be open before it can be closed.

Arguments

• _app - The Tauri app handle
• serial - The serial port state
• path - The path to the serial port (e.g., “COM1”, “/dev/ttyUSB0”)

Returns

Ok(()) if the port was closed successfully, or an Error if it failed.

Example

use tauri_plugin_serialplugin::commands::close;
use tauri::{AppHandle, State};
 
#[tauri::command]
async fn close_serial_port(
    app: AppHandle<tauri::Wry>,
    serial: State<'_, tauri_plugin_serialplugin::desktop_api::SerialPort<tauri::Wry>>
) -> Result<(), String> {
    close(app, serial, "COM1".to_string()).map_err(|e| e.to_string())
}

JavaScript Equivalent

import { SerialPort } from "tauri-plugin-serialplugin-api";;
 
const port = new SerialPort({ path: "COM1" });
await port.close();