---
name: "TPMLIB_WasManufactured"
section: "3"
platform: "linux"
package: "libtpms"
version: "0.10.2-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/TPMLIB_WasManufactured"
---

# TPMLIB\_WasManufactured(3)

Check whether a new instance was created

## NAME

TPMLIB\_WasManufactured  - Check whether a new instance was created

## LIBRARY

TPM library (libtpms, -ltpms)

## SYNOPSIS

**#include \<libtpms/tpm\_types.h**\>

**#include \<libtpms/tpm\_library.h**\>

**#include \<libtpms/tpm\_error.h**\>

**TPM\_BOOL TPMLIB\_WasManufactured(void);**

## DESCRIPTION

**TPMLIB\_WasManufactured()** is used to check whether a new TPM instance was created using **TPMLIB\_MainInit()** rather than an already existing one was restarted. This function will only return a valid result if it is called after **TPMLIB\_MainInit()**.

This function only applies to a TPM 2 and for a TPM 1.2 it will always return *FALSE*.

## SEE ALSO

**TPMLIB\_ChooseTPMVersion**, [**TPMLIB\_MainInit**(3)](/TPMLIB_MainInit/3.md)