.TH "libnvme" 9 "struct nvme_mi_mi_req_hdr" "May 2024" "API Manual" LINUX .SH NAME struct nvme_mi_mi_req_hdr \- MI request message header. .SH SYNOPSIS struct nvme_mi_mi_req_hdr { .br .BI " struct nvme_mi_msg_hdr hdr;" .br .BI " __u8 opcode;" .br .BI " __u8 rsvd0[3];" .br .BI " __le32 cdw0, cdw1;" .br .BI " }; .br .SH Members .IP "hdr" 12 generic MI message header .IP "opcode" 12 opcode (OPC) for the specific MI command .IP "rsvd0" 12 reserved bytes .IP "cdw0" 12 Management Request Doubleword 0 - command specific usage .IP "cdw1" 12 Management Request Doubleword 1 - command specific usage .SH "Description" Wire format for MI request message headers, defined in section 5 of NVMe-MI.