nulldev(9F) Kernel Functions for Drivers nulldev(9F)NAMEnulldev - zero return function
SYNOPSIS
#include <sys/conf.h>
#include <sys/ddi.h>
int nulldev();
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
DESCRIPTIONnulldev() returns 0. It is intended to be used in the cb_ops(9S) data
structure of a device driver for device entry points that do nothing.
RETURN VALUESnulldev() returns a 0.
CONTEXTnulldev() can be called from any context.
SEE ALSOnodev(9F), cb_ops(9S)
Writing Device Drivers
SunOS 5.10 11 Apr 1991 nulldev(9F)