TPM module fails to load.

Solution Verified - Updated -

Issue

Trusted Platform Module (TPM) fails to load after installing tpm-tools(tpm-tools-1.3.8-6.el7.x86_64) and trousers(trousers-0.3.13-1.el7.x86_64) packages.

  • Receiving the following error when attempting to start tcsd daemon:

     TCSD TDDL[11470]: TrouSerS ioctl: (25) Inappropriate ioctl for device
    

Environment

  • Red Hat Enterprise Linux 7.3.
    • Observed on but not limited to the kernel version kernel-3.10.0-514.el7.x86_64

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