BZERO(9F) Kernel Functions for Drivers BZERO(9F)
NAME
bzero - clear memory for a given number of bytes
SYNOPSIS
#include <sys/types.h>
#include <sys/ddi.h>
void bzero(
void *addr,
size_t bytes);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
addr Starting virtual address of memory to be cleared.
bytes The number of bytes to clear starting at
addr.
DESCRIPTION
The
bzero() function clears a contiguous portion of memory by filling
it with zeros.
CONTEXT
The
bzero() function can be called from user, interrupt, or kernel
context.
SEE ALSO
bcopy(9F),
clrbuf(9F),
kmem_zalloc(9F) Writing Device DriversWARNINGS
The address range specified must be within the kernel space. No range
checking is done. If an address outside of the kernel space is
selected, the driver may corrupt the system in an unpredictable way.
January 16, 2006 BZERO(9F)
