libnvme(9) API Manual libnvme(9) NAME struct nvme_supported_ctrl_state_formats - Supported Controller State Formats Data Structure (CNS 20h) SYNOPSIS struct nvme_supported_ctrl_state_formats { __u8 nv; __u8 nuuid; __u8 data[4094]; }; Members nv Number of Versions (NV) in the NVMe Controller State Version list at the start of data nuuid Number of UUIDs (NUUID) in the Vendor Specific Controller State UUID Supported list, immediately following the NVMe Controller State Version list in data data NVMe Controller State Version list (nv __le16 entries) immediately followed by the Vendor Specific Controller State UUID Supported list (nuuid 128-bit UUID entries) October 2026 struct nvme_supported_ctrl_state_formats libnvme(9)