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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

May 2018 Kernel Hackers Manual 3.16