bp_copyin(9F)						   Kernel Functions for Drivers 					     bp_copyin(9F)

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)

SunOS 5.11							    16 Oct 2007 						     bp_copyin(9F)