CLRBUF(9F) Kernel Functions for Drivers CLRBUF(9F)
clrbuf - erase the contents of a buffer
#include <sys/types.h>
#include <sys/buf.h>
void clrbuf(struct buf *bp);
Architecture independent level 1 (DDI/DKI).
bp
Pointer to the buf(9S) structure.
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.
The clrbuf() function can be called from user, interrupt, or kernel
context.
getrbuf(9F), buf(9S)
Writing Device Drivers
January 16, 2006 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
January 16, 2006 CLRBUF(9F)