Function set_data_bits 

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

Sets the number of data bits for a serial port

Changes the number of data bits per character. Most modern applications use 8 data bits, but some legacy systems may use 7 bits.

Arguments

• _app - The Tauri app handle
• serial - The serial port state
• path - The path to the serial port (e.g., “COM1”, “/dev/ttyUSB0”)
• data_bits - The number of data bits (Five, Six, Seven, or Eight)

Returns

Ok(()) if the data bits were set successfully, or an Error if it failed.

Example

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

JavaScript Equivalent

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