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diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
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+#
+# TPM device configuration
+#
+
+menu "TPM devices"
+
+config TCG_TPM
+ tristate "TPM Hardware Support"
+ depends on EXPERIMENTAL && PCI
+ ---help---
+ If you have a TPM security chip in your system, which
+ implements the Trusted Computing Group's specification,
+ say Yes and it will be accessible from within Linux. For
+ more information see <http://www.trustedcomputinggroup.org>.
+ An implementation of the Trusted Software Stack (TSS), the
+ userspace enablement piece of the specification, can be
+ obtained at: <http://sourceforge.net/projects/trousers>. To
+ compile this driver as a module, choose M here; the module
+ will be called tpm. If unsure, say N.
+
+config TCG_NSC
+ tristate "National Semiconductor TPM Interface"
+ depends on TCG_TPM
+ ---help---
+ If you have a TPM security chip from National Semicondutor
+ 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.
+
+config TCG_ATMEL
+ tristate "Atmel TPM Interface"
+ depends on TCG_TPM
+ ---help---
+ If you have a TPM security chip from Atmel 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_atmel.
+
+endmenu
+