PARPORT_WAIT_EVENT(9)                 Parallel Port Devices                 PARPORT_WAIT_EVENT(9)



NAME
       parport_wait_event - wait for an event on a parallel port

SYNOPSIS
       int parport_wait_event(struct parport * port, signed long timeout);

ARGUMENTS
       port
           port to wait on

       timeout
           time to wait (in jiffies)

DESCRIPTION
       This function waits for up to timeout jiffies for an interrupt to occur on a parallel
       port. If the port timeout is set to zero, it returns immediately.

       If an interrupt occurs before the timeout period elapses, this function returns zero
       immediately. If it times out, it returns one. An error code less than zero indicates an
       error (most likely a pending signal), and the calling code should finish what it's doing
       as soon as it can.

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