> That seems silly. /dev/rtc is useless unless you can get > 64hz from > it, but it's also (annoyingly!) exclusive, one user only. Seems like > alot of bother for me to honour premissions on the device when I'm just > going to be cruel and get higher resolution from it, and furthermore > require user to set up groups if they don't want people stealing it > away. Well you can set the maximum user timing via /proc too btw. Also I agree 64Hz is a dumb limit - its from the days of pedal powered 386 computers. I guess I should fix that for 2.5 > Ok, thanks for the advice. I'm not sure what error message to report > if that fails. Will it return -1 under any consistent operating > conditions? In the presence of something like NSA secure linux yes, ditto RSBAC and any random future security systems. Always test