POLLWAKEUP(9F) Kernel Functions for Drivers POLLWAKEUP(9F)
NAME
pollwakeup - inform a process that an event has occurred
SYNOPSIS
#include <sys/poll.h>
void pollwakeup(
struct pollhead *php,
short event);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
php Pointer to a
pollhead structure.
event Event to notify the process about.
DESCRIPTION
The
pollwakeup() function wakes a process waiting on the occurrence of an
event. It should be called from a driver for each occurrence of an event.
The
pollhead structure will usually be associated with the driver's
private data structure associated with the particular minor device where
the event has occurred. See
chpoll(9E) and
poll(2) for more detail.
CONTEXT
The
pollwakeup() function can be called from user, interrupt, or kernel
context.
SEE ALSO
poll(2),
chpoll(9E) Writing Device DriversNOTES
Driver defined locks should not be held across calls to this function.
January 16, 2006
POLLWAKEUP(9F)