Function _default_console_setup

components/drivers/serial/serial_tty.c:414–441

* @brief The default console is only a backup device with lowest priority. * It's always recommended to scratch the console from the boot arguments. * And dont forget to register the device with a higher priority. */

 *        And dont forget to register the device with a higher priority.
 */
static int _default_console_setup(void)
{
    rt_err_t rc;
    rt_device_t bakdev;
    rt_device_t ttydev;

    bakdev = rt_console_get_device();
    if (!bakdev)
    {
        return -RT_ENOENT;
    }

    ttydev = bakdev;
    rt_object_for_each(RT_Object_Class_Device, _match_tty_iter, &ttydev);

    if (ttydev != bakdev)
    {
        LOG_I("Using /dev/%.*s as default console", RT_NAME_MAX, ttydev->parent.name);
        lwp_console_register_backend(ttydev, LWP_CONSOLE_LOWEST_PRIOR);
        rc = RT_EOK;
    }
    else
    {
        rc = -RT_EINVAL;
    }

    return rc;
}

INIT_COMPONENT_EXPORT(_default_console_setup);