tpm-probe.conf

# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Detect TPM hardware, and start the trousers daemon.

start on started syslog

script
  # If there is a TPM, and the firmware detected it, and the module is compiled
  # in the kernel, or has been already loaded in other ways, then the module
  # has created a sysfs entry, and we're done.  Otherwise, try loading the tpm
  # modules.  We use "force=1" because we have to deal with various versions of
  # the firmware that don't initialize the pnp table.
  if ! test -e /sys/devices/platform/tpm_tis && \
     ! modprobe tpm_tis force=1 interrupts=0; then
    # added by modprobe, but not needed by the emulator
    rmmod tpm tpm_bios || :
    logger "TPM not available on this system"
  fi
  # Note, this line is modified by chromeos-factoryinstall.ebuild
  # Please do not change without also changing this reference.
  start tcsd
end script