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Copyright (c) 2007, 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]
Copyright (c) 2007, 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]
bp_copyin 9F "16 Oct 2007" "SunOS 5.11" "Kernel Functions for Drivers"
NAME
bp_copyin - copy from a buf(9S) into a driver buffer
SYNOPSIS
#include <sys/types.h> #include <sys/buf.h> int bp_copyin(struct buf *bp, void *driverbuf, offset_t offset, size_t size);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
bp
Pointer to the buffer header structure to copy from.
driverbuf
Driver buffer to copy to.
offset
Offset into bp where to start copying.
size
Size of copy.
DESCRIPTION
The bp_copyin() function copies size bytes into the memory associated with bp to the destination driver buffer driverbuf. The offset only applies to bp.
RETURN VALUES
Under normal conditions, 0 is returned to indicate a successful copy. Otherwise, -1 is returned if bp references invalid pages.
CONTEXT
The bp_copyin() function can be called from user or kernel context only.
SEE ALSO
bp_copyout(9F), bp_mapin(9F), bp_mapout(9F), ddi_copyout(9F), buf(9S)