libnvme(9) API Manual libnvme(9)

struct tcg_l0_header - Level 0 Discovery header

struct tcg_l0_header {
__be32 length;
__be32 revision;
__u8 rsvd8[8];
__u8 vs[32];
};

Length of the parameter data, excluding this field
Data structure revision
Reserved
Vendor specific

TCG Opal SSC 2.02, section 3.1.1.1.

struct tcg_l0_header October 2026