AoU: ETAS_RTACAR_SM_OS_186 ************************** The ETAS_RTACAR_SM_OS_186 AoU provides a list of OS API functions allowed to be called from Category 1 ISR implementations. The relevant functions are declared through a macro as in the pattern: .. code:: C CAT1_ISR() {...} .. include:: restricted_os_function_common_rationale.rst .. include:: ../rules/ETAS_RTACAR_SM_OS_186.rst