'\" te
.\" Copyright (c) 2006, Sun Microsystems, Inc. All Rights Reserved.
.\" Copyright 1989 AT&T
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
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.TH geterror 9F "16 Jan 2006" "SunOS 5.11" "Kernel Functions for Drivers"
.SH NAME
geterror \- return \fBI/O\fR error
.SH SYNOPSIS
.LP
.nf
#include <sys/types.h>
#include <sys/buf.h>
#include <sys/ddi.h>



\fBint\fR \fBgeterror\fR(\fBstruct buf *\fR\fIbp\fR);
.fi

.SH INTERFACE LEVEL
.sp
.LP
Architecture independent level 1 (DDI/DKI).
.SH PARAMETERS
.sp
.ne 2
.mk
.na
\fB\fIbp\fR\fR
.ad
.RS 6n
.rt  
Pointer to a \fBbuf\fR(9S) structure.
.RE

.SH DESCRIPTION
.sp
.LP
The \fBgeterror()\fR function returns the error number  from the error field of
the  buffer header structure.
.SH RETURN VALUES
.sp
.LP
An error number indicating the error condition of the \fBI/O\fR request is
returned. If the \fBI/O\fR request completes successfully, \fB0\fR is returned.
.SH CONTEXT
.sp
.LP
The \fBgeterror()\fR function can be called from user, interrupt, or kernel
context.
.SH SEE ALSO
.sp
.LP
\fBbuf\fR(9S)
.sp
.LP
\fIWriting Device Drivers\fR