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


NAME


ddi_get_lbolt - returns the value of lbolt

SYNOPSIS


#include <sys/types.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>


clock_t ddi_get_lbolt(void);


INTERFACE LEVEL


illumos DDI specific (illumos DDI).

DESCRIPTION


ddi_get_lbolt() returns the value of lbolt where lbolt is an integer that
represents the number of clock ticks since the last system reboot. This
value is used as a counter or timer inside the system kernel. The tick
frequency can be determined by using drv_usectohz(9F) which converts
microseconds into clock ticks.

RETURN VALUES


ddi_get_lbolt() returns the value of lbolt.

CONTEXT


This routine can be called from any context.

SEE ALSO


ddi_get_time(9F), drv_getparm(9F), drv_usectohz(9F)


Writing Device Drivers


STREAMS Programming Guide


illumos February 18, 1998 DDI_GET_LBOLT(9F)