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Tspi_TPM_DirRead(3)   DragonFly Library Functions Manual   Tspi_TPM_DirRead(3)

                   TCG Software Stack Developer's Reference

NAME
       Tspi_TPM_DirRead - Read a Data Integrity Register

SYNOPSIS
       #include <tss/platform.h>
       #include <tss/tcpa_defines.h>
       #include <tss/tcpa_typedef.h>
       #include <tss/tcpa_struct.h>
       #include <tss/tss_typedef.h>
       #include <tss/tss_structs.h>
       #include <tss/tspi.h>

       TSS_RESULT Tspi_TPM_DirRead(TSS_HTPM hTPM,             UINT32 ulDirIndex,
                                   UINT32*  pulDirDataLength, BYTE** prgbDirData);

DESCRIPTION
       Tspi_TPM_DirRead reads a data integrity register. DIRs are non-volatile
       (persistent across reboots) memory areas maintained by the TPM.

PARAMETERS
   hTPM
       The hTPM parameter is used to specify the handle of the TPM object.

   ulDirIndex
       The ulDirIndex parameter is the index of the DIR to read. To query the
       TPM for the number of DIR registers it supports, use
       Tspi_TPM_GetCapability(3).

   pulDirDataLength
       The pulDirDataLength parameter receives the length in bytes of the
       prgbDirData parameter.

   prgbDirData
       The prgbDirData parameter receives a pointer to memory containing the
       DIR data.

RETURN CODES
       Tspi_TPM_DirRead returns TSS_SUCCESS on success, otherwise one of the
       following values is returned:

       TSS_E_INVALID_HANDLE
              hTPM is not a valid handle.

       TSS_E_INTERNAL_ERROR
              An internal SW error has been detected.

       TSS_E_BAD_PARAMETER
              One or more parameters is bad.

CONFORMING TO
       Tspi_TPM_DirRead conforms to the Trusted Computing Group Software
       Specification version 1.1 Golden

SEE ALSO
       Tspi_TPM_GetCapability(3), Tspi_TPM_DirWrite(3).

TSS 1.1                           2004-05-25               Tspi_TPM_DirRead(3)