parport_wait_event

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

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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.