WAIT_EVENT_KILLABLE(9)                    Driver Basics                    WAIT_EVENT_KILLABLE(9)



NAME
       wait_event_killable - sleep until a condition gets true

SYNOPSIS
       wait_event_killable(wq, condition);

ARGUMENTS
       wq
           the waitqueue to wait on

       condition
           a C expression for the event to wait for

DESCRIPTION
       The process is put to sleep (TASK_KILLABLE) 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 will return -ERESTARTSYS if it was interrupted by a signal and 0 if condition
       evaluated to true.

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