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

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

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

Architecture independent level 1 (DDI/DKI).

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.

The bp_copyout() 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.

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

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

bp_copyin(9F), bp_mapin(9F), bp_mapout(9F), ddi_copyout(9F), buf(9S)

October 16, 2007 OmniOS