高手请进：帮助理解 IoInitializeTimer

请问高手 IoInitializeTimer 怎么翻译？这两天俺苦读win2kDDK Document,百思不得其解，请高手指点，3ks

Comments
A driver's IoTimer routine is called once per second after the driver enables the timer by calling IoStartTimer.

The driver can disable the timer by calling IoStopTimer and can re-enable it again with IoStartTimer.

The driver's IoTimer routine is called at IRQL DISPATCH_LEVEL and therefore must not contain pageable code.

When the timer is running, the I/O Manager calls the driver-supplied IoTimer routine once per second. Drivers whose time-out routines should be called at variable intervals or at intervals of finer granularity can set up a CustomTimerDpc routine and use the Ke..Timer routines.

Callers of IoInitializeTimer must be running at IRQL = PASSIVE_LEVEL.

不是说的很清楚了？？？

I have just read Part 4 of Driver Writer's Guide.
And I will keep on reading it!
ohow, thank you all the same!