Scroll to navigation

WAIT_EVENT(9) Driver Basics WAIT_EVENT(9)

NAME

wait_event - sleep until a condition gets true

SYNOPSIS

wait_event(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_UNINTERRUPTIBLE) until the condition evaluates to true. 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.

COPYRIGHT

May 2018 Kernel Hackers Manual 3.16