@brief Request all event type notifications on a single line. @param line GPIO line object. @param consumer Name of the consumer. @param flags Additional request flags. @return 0 if the operation succeeds, -1 on failure.
See Implementation
@brief Request all event type notifications on a single line. @param line GPIO line object. @param consumer Name of the consumer. @param flags Additional request flags. @return 0 if the operation succeeds, -1 on failure.