Function nvme_set_features_async_event 

pub unsafe extern "C" fn nvme_set_features_async_event(
    fd: c_int,
    events: __u32,
    save: bool,
    result: *mut __u32,
) -> c_int

nvme_set_features_async_event() - Set asynchronous event feature @fd: File descriptor of nvme device @events: Events to enable @save: Save value across power states @result: The command completion result from CQE dword0

Return: The nvme command status if a response was received (see &enum nvme_status_field) or -1 with errno set otherwise.