@brief Request falling edge event notifications on a set of lines. @param bulk Set of GPIO lines to request. @param consumer Name of the consumer. @return 0 if the operation succeeds, -1 on failure.
See Implementation
@brief Request falling edge event notifications on a set of lines. @param bulk Set of GPIO lines to request. @param consumer Name of the consumer. @return 0 if the operation succeeds, -1 on failure.