tpm_pcrread.3

IBM开发的TPM的驱动, 有少量的例子可以供参考

.\" Copyright 2004 IBM (Jeff Kravitz)
.\"
.\" Written Mar 29 2004, Jeff Kravitz
.\"
.TH "TPM_PcrRead" 3  2004-02-10 "IBM" "TPM Library"
.SH NAME
TPM_PcrRead
.SH SYNOPSIS
.nf
.B #include <tpmfunc.h>
.sp
.BR "uint32_t TPM_PcrRead" "(uint32_t pcrindex,"
                  unsigned char *pcrvalue)
.fi
.SH DESCRIPTION
The \fBTPM_PcrRead()\fP function returns the
current PCR register value, for a specified PCR register.
.SH ARGUMENTS
The arguments include...
.TP 10
.B pcrindex
A number that indicates
PCR register to be read.
.TP 10
.B pcrvalue
A pointer to a 20 byte area to receive the contents of the specified
PCR register.
.SH "RETURN VALUE"
0 if the operation is successful. non-zero otherwise.
The non zero value can be converted to an error message via the function \fBTPM_GetErrMsg()\fP.
.SH "SEE ALSO"
.BR TPM_GetErrMsg(3) .
.SH AUTHOR
Jeff Kravitz, IBM T.J. Watson Research Center