POLLWAKEUP(9F) Kernel Functions for Drivers POLLWAKEUP(9F)
pollwakeup - inform a process that an event has occurred
#include <sys/poll.h>
void pollwakeup(struct pollhead *php, short event);
Architecture independent level 1 (DDI/DKI).
php
Pointer to a pollhead structure.
event
Event to notify the process about.
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.
The pollwakeup() function can be called from user, interrupt, or
kernel context.
poll(2), chpoll(9E)
Writing Device Drivers
Driver defined locks should not be held across calls to this
function.
January 16, 2006 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 Drivers
NOTES
Driver defined locks should not be held across calls to this
function.
January 16, 2006 POLLWAKEUP(9F)