centos man page for schedule_hrtimeout

SCHEDULE_HRTIMEOUT(9)						   Driver Basics					     SCHEDULE_HRTIMEOUT(9)

NAME
       schedule_hrtimeout - sleep until timeout

SYNOPSIS
       int __sched schedule_hrtimeout(ktime_t * expires, const enum hrtimer_mode mode);

ARGUMENTS
       expires
	   timeout value (ktime_t)

       mode
	   timer mode, HRTIMER_MODE_ABS or HRTIMER_MODE_REL

DESCRIPTION
       Make the current task sleep until the given expiry time has elapsed. The routine will return immediately unless the current task state has
       been set (see set_current_state).

       You can set the task state as follows -

       TASK_UNINTERRUPTIBLE - at least timeout time is guaranteed to pass before the routine returns.

       TASK_INTERRUPTIBLE - the routine may return early if a signal is delivered to the current task.

       The current task state is guaranteed to be TASK_RUNNING when this routine returns.

       Returns 0 when the timer has expired otherwise -EINTR

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						     SCHEDULE_HRTIMEOUT(9)