Hi! > > I agree with that but not the android guys. They seem to mandate an RTC > > that can store time from 01/01/1970. I don't know much more than that > > because they never cared to explain why that was actually necessary > > (apart from a laconic "this will result in a bad user experience") > > > > I think tglx had a plan for offsetting the time at some point so 32-bit > > platform can pass 2038 properly. > > Yes, but there are still quite some issues to solve there: > > 1) How do you tell the system that it should apply the offset in the > first place, i.e at boot time before NTP or any other mechanism can > correct it?
I'd not do offset. Instead, I'd select a threshold (perhaps year of release of given kernel?) and if (rtc_time < year_of_release_of_kernel) rtc_time += 0x100000000; Ok, we'll have to move away from "rtc_time == 0 indicates zero", as seen in some drivers. > 2) Deal with creative vendors who have their own idea about the 'start > of the epoch' If someone uses different threshold, well, there will be confusion. But only for users that have their rtc set to the past, which is quite unusual. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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