opensolaris 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
       The  clrbuf() function 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
       The clrbuf() function can be called from user, interrupt, or kernel context.

SEE ALSO
       getrbuf(9F), buf(9S)

       Writing Device Drivers

SunOS 5.11							    16 Jan 2006 							clrbuf(9F)