1WAIT_EVENT_INTERRUPT(9)          Driver Basics         WAIT_EVENT_INTERRUPT(9)
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NAME

6       wait_event_interruptible_timeout - sleep until a condition gets true or
7       a timeout elapses
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SYNOPSIS

10       wait_event_interruptible_timeout(wq, condition, timeout);
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ARGUMENTS

13       wq
14           the waitqueue to wait on
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16       condition
17           a C expression for the event to wait for
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19       timeout
20           timeout, in jiffies
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DESCRIPTION

23       The process is put to sleep (TASK_INTERRUPTIBLE) until the condition
24       evaluates to true or a signal is received. The condition is checked
25       each time the waitqueue wq is woken up.
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27       wake_up has to be called after changing any variable that could change
28       the result of the wait condition.
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RETURNS

31       0 if the timeout elapsed, -ERESTARTSYS if it was interrupted by a
32       signal, or the remaining jiffies (at least 1) if the condition
33       evaluated to true before the timeout elapsed.
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36Kernel Hackers Manual 3.10         June 2019           WAIT_EVENT_INTERRUPT(9)
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