te
Copyright (c) 2009 Sun Microsystems, Inc., All Rights Reserved.
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.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
bioinit - initialize a buffer structure

#include <sys/ddi.h>
#include <sys/sunddi.h>

void bioinit(struct buf *bp);

illumos DDI specific (illumos DDI). bp The bioinit() function initializes a buf(9S) structure. A buffer structure contains state information which has to be initialized if the memory for the buffer was allocated using kmem_alloc(9F). This is not necessary for a buffer allocated using getrbuf(9F) because getrbuf() will call bioinit() directly. The bioinit() function can be called from any context. Example 1 Using bioinit()

struct buf *bp = kmem_alloc(biosize(), KM_SLEEP);
bioinit(bp);
/* use buffer */

biofini (9F), bioreset (9F), biosize (9F), getrbuf (9F), kmem_alloc (9F), buf (9S)

Writing Device Drivers