+ * \todo Decouple this code from the LCD, buzzer and timer drivers
+ * introducing user hooks or macros like CHECK_ABORT.
+ *
+ * \todo Break xmodem_send() and xmodem_recv() in smaller functions.
+ *
+ * \todo Add CONFIG_* vars to exclude either the receiver or the sender,
+ * to reduce the footprint for applications that don't need both.
+ *
+ * \todo Maybe convert drv/ser.c to the KFile interface for symmetry and
+ * flexibility.
+ *