libnvme_mi_mi_read_mi_data_subsys(9) libnvme API manual libnvme_mi_mi_read_mi_data_subsys(9)

libnvme_mi_mi_read_mi_data_subsys - Perform a Read MI Data Structure command, retrieving subsystem data.

int libnvme_mi_mi_read_mi_data_subsys (struct libnvme_mi_ep *ep , struct nvme_mi_read_nvm_ss_info *s );

endpoint for MI communication
subsystem information to populate

Retrieves the Subsystem information - number of external ports and NVMe version information. See struct nvme_mi_read_nvm_ss_info.

The nvme command status if a response was received (see enum nvme_status_field) or negative error code otherwise.

libnvme_mi_mi_read_mi_data_subsys September 2026