.TH "nvme_identify_ctrl_csi" 2 "nvme_identify_ctrl_csi" "February 2024" "libnvme API manual" LINUX .SH NAME nvme_identify_ctrl_csi \- I/O command set specific Identify Controller data .SH SYNOPSIS .B "int" nvme_identify_ctrl_csi .BI "(int fd " "," .BI "enum nvme_csi csi " "," .BI "void *data " ");" .SH ARGUMENTS .IP "fd" 12 File descriptor of nvme device .IP "csi" 12 Command Set Identifier .IP "data" 12 User space destination address to transfer the data .SH "DESCRIPTION" 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 \fIcsi\fP. .SH "RETURN" The nvme command status if a response was received (see \fIenum nvme_status_field\fP) or -1 with errno set otherwise.