bioinit(9F)

NAME

     bioinit - initialize a buffer structure

SYNOPSIS

     #include <sys/ddi.h>
     #include <sys/sunddi.h>

     voidbioinit(struct buf *bp);

INTERFACE LEVEL

     Solaris DDI specific (Solaris DDI).

PARAMETERS

     bp    Pointer to the buffer header structure.

DESCRIPTION

     The bioinit() function initializes a  buf(9S)  structure.  A
     buffer  structure contains state information which has to be
     initialized if the memory for the buffer was allocated using
     kmem_alloc(9F). This is not necessary for a buffer allocated
     using getrbuf(9F)  because  getrbuf()  will  call  bioinit()
     directly.

CONTEXT

     The bioinit() function can be called from any context.

EXAMPLES

     Example 1: Using bioinit()

     struct buf *bp = kmem_alloc(biosize(), KM_SLEEP);
     bioinit(bp);
     /* use buffer */

SEE ALSO

     biofini(9F),   bioreset(9F),    biosize(9F),    getrbuf(9F),
     kmem_alloc(9F), buf(9S)

     Writing Device Drivers