__hrtimer_get_remaining (9) - get remaining time for the timer
hrtimer_cancel (9)   - cancel a timer and wait for the handler to finish.
hrtimer_forward (9)  - forward the timer expiry
hrtimer_forward_now (9) - forward the timer expiry so it expires after now
hrtimer_init (9)     - initialize a timer to the given clock
hrtimer_start (9)    - (re)start an hrtimer on the current CPU
hrtimer_start_range_ns (9) - (re)start an hrtimer on the current CPU
hrtimer_try_to_cancel (9) - try to deactivate a timer
struct_hrtimer (9)   - the basic hrtimer structure
struct_hrtimer_clock_base (9) - the timer base for a specific clock
struct_hrtimer_sleeper (9) - simple sleeper structure