HIL_IDD_HEADER_IOD
((4 - !(header_packet & HIL_IDD_HEADER_IOD) - \
((*header_ptr & HIL_IDD_HEADER_IOD) && \
((*header_ptr & HIL_IDD_HEADER_IOD) && \
((*header_ptr & HIL_IDD_HEADER_IOD) ? \
((*header_ptr & HIL_IDD_HEADER_IOD) ? \