use kernel::device_interface::character::CharacterDevice; pub struct Serial { pub base: usize, } impl CharacterDevice for Serial { fn can_read(&self) -> bool { true } fn can_write(&self) -> bool { true } fn read_char(&mut self) -> Option { todo!() } fn write_char(&mut self, c: char) -> bool { todo!() } fn reset(&mut self) { todo!() } fn initialize(&mut self) -> bool { false } } pub fn new_serial_test() { let mut serial = Serial { base: 0x3F8 }; serial.initialize(); serial.write_char('a'); }