National Semiconductor TPM Interface

modulename: tpm_nsc.ko

configname: CONFIG_TCG_NSC

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>TPM Hardware Support
└─>National Semiconductor TPM Interface
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you have a TPM security chip from National Semiconductor
say Yes and it will be accessible from within Linux. To
compile this driver as a module, choose M here; the module
will be called tpm_nsc.

source code: