KTIME_TO_NS(9) Driver Basics KTIME_TO_NS(9)NAME
ktime_to_ns - convert a ktime_t variable to scalar nanoseconds
SYNOPSIS
s64 ktime_to_ns(const ktime_t kt);
ARGUMENTS
kt
the ktime_t variable to convert
DESCRIPTION
Returns the scalar nanoseconds representation of kt
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 KTIME_TO_NS(9)
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STRUCT HRTIMER(9) Driver Basics STRUCT HRTIMER(9)NAME
struct_hrtimer - the basic hrtimer structure
SYNOPSIS
struct hrtimer {
struct timerqueue_node node;
ktime_t _softexpires;
enum hrtimer_restart (* function) (struct hrtimer *);
struct hrtimer_clock_base * base;
unsigned long state;
#ifdef CONFIG_TIMER_STATS
int start_pid;
void * start_site;
char start_comm[16];
#endif
};
MEMBERS
node
timerqueue node, which also manages node.expires, the absolute expiry time in the hrtimers internal representation. The time is related
to the clock on which the timer is based. Is setup by adding slack to the _softexpires value. For non range timers identical to
_softexpires.
_softexpires
the absolute earliest expiry time of the hrtimer. The time which was given as expiry time when the timer was armed.
function
timer expiry callback function
base
pointer to the timer base (per cpu and per clock)
state
state information (See bit values above)
start_pid
timer statistics field to store the pid of the task which started the timer
start_site
timer statistics field to store the site where the timer was started
start_comm[16]
timer statistics field to store the name of the process which started the timer
DESCRIPTION
The hrtimer structure must be initialized by hrtimer_init
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 STRUCT HRTIMER(9)