Function nvme_get_features 

pub unsafe extern "C" fn nvme_get_features(
    args: *mut nvme_get_features_args,
) -> c_int

nvme_get_features() - Retrieve a feature attribute @args: &struct nvme_get_features_args argument structure

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