Messages in this thread | | | Date | Thu, 29 Jul 1999 12:17:00 +0100 (GMT) | From | Riley Williams <> | Subject | Re: PATCH: /dev/nvram cleanups. |
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Hi Meelis.
>> Some RTCs implement only 64 bytes of NVRAM, with bytes 64-127 >> mapping back to 0-63. That way, you could not only write the >> NVRAM, but make the RTC generate interrupts (which we use as >> timer interrupts on some Alphas), set the system time or cause >> alarms as soon as you'd have write access to the NVRAM. AFAIK >> there is no way to autodetect the size of the NVRAM.
> OK, I've seen a 64-byte CMOS myself. But 64 is still better than > 50 :) (no, I don't have real need to access these bytes yet)
I thought your arithmetic was better than that...
Q> Bytes Description Q> ~~~~~ ~~~~~~~~~~~ Q> 14 RTC registers Q> 50 CMOS RAM Q> ~~~~~ Q> 64 Total
Comments?
Best wishes from Riley.
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