---
name: "tpm"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["freebsd", "openbsd"]
url: "https://new.carta.tech/tpm"
---

# tpm(4)

Trusted Platform Module device

## NAME

**tpm** – Trusted Platform Module device

## SYNOPSIS

**tpm\* at acpi?**

## DESCRIPTION

The **tpm** driver supports devices implementing the TPM Interface Spec 1.2.

Supported devices include:

- Atmel 97SC3203

- Broadcom BCM0102

- Infineon IFX SLD 9630 TT 1.1 and IFX SLB 9635 TT 1.2

- Intel INTC0102

- Sinosun SNS SSX35

- STM ST19WP18

- Winbond WEC WPCT200

## HISTORY

The **tpm** driver first appeared in OpenBSD 6.1.

## AUTHORS

The **tpm** driver was initially written by Michael Shalayeff and Hans-Joerg Hoexer.

## CAVEATS

Functionality is limited to instructing the device to save its state before a system suspend.