WAIT_EVENT_HRTIMEOUT(9)                   Driver Basics                   WAIT_EVENT_HRTIMEOUT(9)



NAME
       wait_event_hrtimeout - sleep until a condition gets true or a timeout elapses

SYNOPSIS
       wait_event_hrtimeout(wq, condition, timeout);

ARGUMENTS
       wq
           the waitqueue to wait on

       condition
           a C expression for the event to wait for

       timeout
           timeout, as a ktime_t

DESCRIPTION
       The process is put to sleep (TASK_UNINTERRUPTIBLE) until the condition evaluates to true
       or a signal is received. The condition is checked each time the waitqueue wq is woken up.

       wake_up has to be called after changing any variable that could change the result of the
       wait condition.

       The function returns 0 if condition became true, or -ETIME if the timeout elapsed.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   WAIT_EVENT_HRTIMEOUT(9)