第一套键盘扫描码的状态机 (#216)

第一套键盘扫描码的状态机
---------

Co-authored-by: guanjinquan <1666320330@qq.com>
Co-authored-by: longjin <longjin@RinGoTek.cn>

user/libs/libKeyboard/keyboard.c

@@ -528,6 +528,6 @@ int keyboard_analyze_keycode(int fd)
 int keyboard_get_scancode(int fd)
 {
     unsigned int ret = 0;
-    read(fd, &ret, 1);
+    read(fd, &ret, 1); 
     return ret;
 }