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Date: Tue, 02 Oct 2007 19:15:36 -0700
From: David Brownell <david-b@pacbell.net>
To: pavel@ucw.cz
Subject: Re: RTC wakealarm write-only, still has 644 permissions
Cc: rtc-linux@googlegroups.com, linux-kernel@vger.kernel.org,
       alessandro.zummo@towertech.it
References: <20070920103225.GA4410@elf.ucw.cz>
 <20070920105002.GA4611@elf.ucw.cz>
 <200709212238.05130.david-b@pacbell.net>
 <20071002093641.GA11039@atrey.karlin.mff.cuni.cz>
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> > > > root@amd:/sys/class/rtc/rtc0# cat wakealarm 
> > > > root@amd:/sys/class/rtc/rtc0# echo 132719 > wakealarm 
> > 
> > At which point I'd expect
> > 
> > # echo $?
> > 
> > would indicate the write failed.  That's a LONG time in the
> > past (January 2, 1970), so that setting would be rejected.
>
> echo $? says 0 here :-(.

I stand corrected.  What it should do -- and does -- in that case
involves disabling the alarm, then succeeding.

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