104     sys_info: Option<Arc<dyn IndexNode>>,
105     driver: Option<Arc<dyn PlatformDriver>>,
148     fn set_driver(&self, driver: Option<Arc<dyn PlatformDriver>>) {  in set_driver()
158     fn set_sys_info(&self, sys_info: Option<Arc<dyn IndexNode>>) {  in set_sys_info()
162     fn sys_info(&self) -> Option<Arc<dyn IndexNode>> {  in sys_info()
170     fn as_any_ref(&'static self) -> &'static dyn core::any::Any {  in as_any_ref()
181     sys_info: Option<Arc<dyn IndexNode>>,
207     fn as_any_ref(&'static self) -> &'static dyn core::any::Any {  in as_any_ref()
215     fn set_sys_info(&self, sys_info: Option<Arc<dyn IndexNode>>) {  in set_sys_info()
219     fn sys_info(&self) -> Option<Arc<dyn IndexNode>> {  in sys_info()
225     fn open(&self, _file: Arc<dyn IndexNode>) -> Result<(), crate::syscall::SystemError> {  in open()
229     fn close(&self, _file: Arc<dyn IndexNode>) -> Result<(), crate::syscall::SystemError> {  in close()
241     pub fn new(port: UartPort, baud_rate: u32, sys_info: Option<Arc<dyn IndexNode>>) -> Self {  in new()
249         _device: Arc<dyn PlatformDevice>,  in probe()
266     pub fn new(port: UartPort, baud_rate: u32, sys_info: Option<Arc<dyn IndexNode>>) -> Self {  in new()