serial_multiport_struct  110 include/asm-xtensa/ioctls.h #define TIOCSERGETMULTI _IOR('T', 90, struct serial_multiport_struct) /* Get multiport config  */
serial_multiport_struct  111 include/asm-xtensa/ioctls.h #define TIOCSERSETMULTI _IOW('T', 91, struct serial_multiport_struct) /* Set multiport config */