sunos man page for clrbuf

clrbuf(9F)						   Kernel Functions for Drivers 						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

SunOS 5.10							    27 Jan 1993 							clrbuf(9F)