libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

struct tcg\_l0\_desc - Level 0 Discovery feature descriptor header

# [SYNOPSIS](#SYNOPSIS)

struct tcg\_l0\_desc {  
**\_\_be16 code;**  
**\_\_u8 version;**  
**\_\_u8 length;**  
};

# [Members](#Members)

[code](#code)

Feature code, see *enum tcg\_l0\_code*

[version](#version)

Feature descriptor version

[length](#length)

Length of the feature data following this header

# [Description](#Description)

TCG Opal SSC 2.02, section 3.1.1.3.

struct tcg\_l0\_desc October 2026

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Document: tcg_l0_desc-libnvme3(2) from nvme-cli 3.2-r0 (Chainguard OS)
Source: https://github.com/linux-nvme/nvme-cli