int nvme_mi_admin_identify_primary_ctrl (nvme_mi_ctrl_t ctrl , __u16 cntid , struct nvme_primary_ctrl_cap *cap );
Controller to process identify command
Controller ID to specify
Primary Controller Capabilities data structure to populate
Perform an Identify command to get the Primary Controller Capabilities data for the controller specified by cntid
Will return an error if the length of the response data (from the controller) is not a full NVME_IDENTIFY_DATA_SIZE, so cap will be be fully populated on success.
See: struct nvme_primary_ctrl_cap
0 on success, non-zero on failure