---
name: "tcg_l0_header-libnvme3"
section: "2"
platform: "linux"
package: "nvme-cli"
version: "3.2-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/tcg_l0_header-libnvme3"
---

# tcg\_l0\_header-libnvme3(2)

Level 0 Discovery header

## NAME

struct tcg\_l0\_header - Level 0 Discovery header

## SYNOPSIS

struct tcg\_l0\_header {\
     **\_\_be32 length;**\
     **\_\_be32 revision;**\
     **\_\_u8 rsvd8\[8\];**\
     **\_\_u8 vs\[32\];**\
 };\

## Members

- length

  Length of the parameter data, excluding this field

- revision

  Data structure revision

- rsvd8

  Reserved

- vs

  Vendor specific

## Description

TCG Opal SSC 2.02, section 3.1.1.1.