Architecture independent level 1 (DDI/DKI).

php

Pointer to a pollhead structure.

event

Event to notify the process about.

pollwakeup() 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.

pollwakeup() can be called from user or interrupt context.

poll(2), chpoll(9E)

Writing Device Drivers

Driver defined locks should not be held across calls to this function.