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Re: char-major-10-135



On Sat, Apr 07, 2001 at 04:15:04PM +0530, Raghavendra Bhat wrote:
> Ethan posts:
> 
> > hwclock uses it to update the hardware clock, this
> > is done at shutdown to keep the clocks synchronized.  
> 
> Agreed that 'hwclock' updates the hardware clock
> while shutting down the m/c.  This does not have 
> anything to do with the 'rtc' module and hwclock does
> in no way use it.  The 'rtc' module gives you access
> to the real time clock (or hardware clock) built 
> into your computer.

yes, hwclock uses /dev/rtc, well at least on powerpc it does, without
a working /dev/rtc it fails.  checking it now it seems to fall back to
some other method (at least for --show) on x86.  do a strace though,
it clearly looks for /dev/rtc.  

-- 
Ethan Benson
http://www.alaska.net/~erbenson/

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