TrouSerSioctl

        if [ ! -e /dev/tpmrm ]
        then
            log_warning_msg "device driver not loaded, skipping."
            exit 0
        fi

        for tpm_dev in /dev/tpmrm; do
            TPM_OWNER=$(stat -c %U $tpm_dev)
            if [ "x$TPM_OWNER" != "xtss" ]
            then
                log_warning_msg "TPM device owner for $tpm_dev is not 'tss', this can cause problems."
            fi
        done

        if [ ! -e /dev/tpm0 ]
        then
            log_warning_msg "device driver not loaded, skipping."
            exit 0
        fi

        for tpm_dev in /dev/tpm0; do
            TPM_OWNER=$(stat -c %U $tpm_dev)
            if [ "x$TPM_OWNER" != "xtss" ]
            then
                log_warning_msg "TPM device owner for $tpm_dev is not 'tss', this can cause problems."
            fi
        done