BZERO(9F) Kernel Functions for Drivers BZERO(9F)

NAME

bzero - clear memory for a given number of bytes

SYNOPSIS

#include <sys/sunddi.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 Drivers

WARNINGS

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)