int nvme_identify_ctrl_csi (int fd , enum nvme_csi csi , void *data );
File descriptor of nvme device
Command Set Identifier
User space destination address to transfer the data
An I/O Command Set specific Identify Controller data structure is returned to the host for the controller processing the command. The specific Identify Controller data structure to be returned is specified by csi.
The nvme command status if a response was received (see enum nvme_status_field) or -1 with errno set otherwise.