Messages in this thread | | | Date | Fri, 15 Jun 2007 09:03:19 +0200 | From | Tino Keitel <> | Subject | Re: rtc_cmos: error after first write to wakealarm |
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On Fri, Jun 15, 2007 at 15:59:04 +0900, Yoichi Yuasa wrote: > On Fri, 15 Jun 2007 08:33:08 +0200 > Tino Keitel <tino.keitel@gmx.de> wrote: > > > Hi, > > > > I have the following strange behaviour with rtc_cmos: > > > > $ echo 1181934240 > /sys/class/rtc/rtc0/wakealarm > > bash: echo: write error: Device or resource busy > > $ rmmod rtc_cmos > > $ modprobe rtc_cmos > > $ echo 1181934240 > /sys/class/rtc/rtc0/wakealarm > > $ echo 1181934240 > /sys/class/rtc/rtc0/wakealarm > > bash: echo: write error: Device or resource busy > > $ > > If the alarm has already been enabled, you cannot set the next alarm. > You should disable first.
Ah, ok.
Where is the documentation that describes that I have to disable it first, and how to do this? A migration document for /proc/acpi/alarm users would be nice, too.
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