Function clear_buffer 

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

Clears the specified buffer of the serial port

Clears either the input buffer, output buffer, or both buffers of the serial port. This is useful for removing stale data.

Arguments

• _app - The Tauri app handle
• serial - The serial port state
• path - The path to the serial port (e.g., “COM1”, “/dev/ttyUSB0”)
• buffer_type - The type of buffer to clear (Input, Output, or Both)

Returns

Ok(()) if the buffer was cleared successfully, or an Error if it failed.

Example

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

JavaScript Equivalent

import { SerialPort, ClearBuffer } from "tauri-plugin-serialplugin-api";;
 
const port = new SerialPort({ path: "COM1" });
await port.open();
await port.clearBuffer(ClearBuffer.Input);