From: Alessandro Zummo <alessandro.zummo@towertech.it>
To: rtc-linux@googlegroups.com
Cc: tino.keitel@gmx.de, Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>,
linux-kernel@vger.kernel.org
Subject: Re: [rtc-linux] Re: rtc_cmos: error after first write to wakealarm
Date: Tue, 19 Jun 2007 14:24:04 +0200 [thread overview]
Message-ID: <20070619142404.42dcdc3c@inspiron> (raw)
In-Reply-To: <20070615070319.GA19455@dose.home.local>
On Fri, 15 Jun 2007 09:03:19 +0200
Tino Keitel <tino.keitel@gmx.de> wrote:
> > > 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.
Well, I guess there is no documentation. Maybe we could add
a dev_warn with an explicit message.
--
Best regards,
Alessandro Zummo,
Tower Technologies - Torino, Italy
http://www.towertech.it
next prev parent reply other threads:[~2007-06-19 12:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-15 6:33 rtc_cmos: error after first write to wakealarm Tino Keitel
2007-06-15 6:59 ` Yoichi Yuasa
2007-06-15 7:03 ` Tino Keitel
2007-06-19 12:24 ` Alessandro Zummo [this message]
2007-06-19 17:24 ` [rtc-linux] " Tino Keitel
2007-06-22 17:34 ` Alessandro Zummo
2007-06-22 18:45 ` David Brownell
2007-06-22 19:44 ` Tino Keitel
2007-06-23 3:18 ` David Brownell
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