.\" Copyright (c) 2007 Joseph Koshy.  All rights reserved.
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.Dd November 24, 2007
.Dt PMC_INIT 3
.Os
.Sh NAME
.Nm pmc_init
.Nd initialize library
.Sh LIBRARY
.Lb libpmc
.Sh SYNOPSIS
.In pmc.h
.Ft int
.Fn pmc_init void
.Sh DESCRIPTION
Function
.Fn pmc_init
initializes the PMC library.
This function must be called before any of the other functions in the
library.
.Sh RETURN VALUES
.Rv -std pmc_init
.Sh ERRORS
A call to
.Fn pmc_init
may fail with the following errors:
.Bl -tag -width Er
.It Bq Er ENOENT
The
.Xr hwpmc 4
module was not found in the kernel.
.It Bq Er EPROGMISMATCH
The library's version number did not match that expected by
.Xr hwpmc 4 .
.It Bq Er ENXIO
PMC hardware on this system is unsupported.
.El
.Sh SEE ALSO
.Xr pmc 3 ,
.Xr hwpmc 4