clrbuf(9F)

NAME

     clrbuf - erase the contents of a buffer

SYNOPSIS

     #include <sys/types.h>
     #include <sys/buf.h>

     void clrbuf(struct buf *bp);

INTERFACE LEVEL

     Architecture independent level 1 (DDI/DKI).

PARAMETERS

     bp    Pointer to the buf(9S) structure.

DESCRIPTION

     clrbuf() zeros a buffer and sets the b_resid member  of  the
     buf(9S)  structure  to  0.  Zeros  are  placed in the buffer
     starting at bp->b_un.b_addr for  a  length  of  bp->b_bcount
     bytes.  b_un.b_addr  and b_bcount are members of the buf(9S)
     data structure.

CONTEXT

     clrbuf() can be called from user or interrupt context.

SEE ALSO

     getrbuf(9F), buf(9S)

     Writing Device Drivers