bp_copyout(9f)

1bp_copyout(9F)           Kernel Functions for Drivers           bp_copyout(9F)
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NAME

6       bp_copyout - copy from a driver buffer into a buf(9S)
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SYNOPSIS

9       #include <sys/types.h>
10       #include <sys/buf.h>
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15       int bp_copyout(void *driverbuf, struct buf *bp, offset_t offset,
16            size_t size);
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INTERFACE LEVEL

20       Architecture independent level 1 (DDI/DKI).
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PARAMETERS

23       bp           Pointer to the buffer header structure to copy to.
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26       driverbuf    Driver buffer to copy from.
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29       offset       Offset into bp where to start copying.
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32       size         Size of copy.
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DESCRIPTION

36       The  bp_copyout()  function  copies size bytes starting from the driver
37       buffer driverbuf to offset bytes into the memory  associated  with  bp.
38       The offset only applies to bp.
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RETURN VALUES

41       Under  normal  conditions, 0 is returned to indicate a successful copy.
42       Otherwise, -1 is returned if bp references invalid pages.
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CONTEXT

45       The bp_copyout() function can be called from  user  or  kernel  context
46       only.
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