Kernel Functions for Drivers                       bpcopyout(9F)



NAME
     bpcopyout - copy from a driver buffer into a buf(9S)

SYNOPSIS
     #include 
     #include 




     int bpcopyout(void *driverbuf, struct buf *bp, offsett offset,
          sizet size);


INTERFACE LEVEL
     Architecture independent level 1 (DI/DKI).

PARAMETERS
     bp           Pointer to the buffer header structure to  copy
                  to.


     driverbuf    Driver buffer to copy from.


     offset       Offset into bp where to start copying.


     size         Size of copy.


DESCRIPTION
     The bpcopyout() function copies size  bytes  starting  from
     the  driver buffer driverbuf to offset bytes into the memory
     associated with bp. The offset only applies to bp.

RETURN VALUES
     Under normal conditions, 0 is returned to  indicate  a  suc-
     cessful  copy.  Otherwise,  -1  is returned if bp references
     invalid pages.

CONTEXT
     The bpcopyout() function can be called from user or  kernel
     context only.

SEE ALSO
     bpcopyin(9F), bpmapin(9F), bpmapout(9F), ddicopyout(9F),
     buf(9S)







SunOS 5.11          Last change: 16 Oct 2007                    1