Function rt_console_set_device

src/kservice.c:188–207

* @brief This function will set a device as console device. * After set a device to console, all output of rt_kprintf will be * redirected to this new device. * * @param name is the name of new console device. * * @return the old console device handler on successful, or RT_NULL on failure. */

 * @return the old console device handler on successful, or RT_NULL on failure.
 */
rt_device_t rt_console_set_device(const char *name)
{
    rt_device_t old_device = _console_device;
    rt_device_t new_device = rt_device_find(name);

    if (new_device != RT_NULL && new_device != old_device)
    {
        if (old_device != RT_NULL)
        {
            /* close old console device */
            rt_device_close(old_device);
        }

        /* set new console device */
        rt_device_open(new_device, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_STREAM);
        _console_device = new_device;
    }

    return old_device;
}
RTM_EXPORT(rt_console_set_device);
#endif /* RT_USING_DEVICE */