SYNOPSIS

wait_event_interruptible(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_INTERRUPTIBLE) 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.

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