Real-Time clock

Joe Pfeiffer joseph at
Wed Mar 12 18:57:33 CET 2008

I've seen 'real time clock' used to mean both, many times.

Mark writes:
>I think your  your terminology is off.
>A real-time clock is a high precision clock that periodically triggers
>a high priority interrupt to ensure some code is executed exactly at
>that time.
>This is separate from hwclock which is just a time keeper and does not
>create interrupts. and only provides to the second information.

More information about the device-owners mailing list