int nvme_directive_send (struct nvme_directive_send_args *args );
struct nvme_directive_send_args argument structure
Directives is a mechanism to enable host and NVM subsystem or controller information exchange. The Directive Send command transfers data related to a specific Directive Type from the host to the controller.
See the NVMe specification for more information.
The nvme command status if a response was received (see enum nvme_status_field) or -1 with errno set otherwise.