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From: "Randy.Dunlap" <rddunlap@osdl.org>
To: "Aurélien GÉRÔME" <ag@roxor.cx>
Cc: linux-kernel@vger.kernel.org
Subject: Re: RTC Inappropriate ioctl for device
Date: Mon, 14 Feb 2005 19:45:11 -0800	[thread overview]
Message-ID: <42117047.6020209@osdl.org> (raw)
In-Reply-To: <20050213214145.GN12421@roxor.cx>

Aurélien GÉRÔME wrote:
> Hi,
> 
> Having CONFIG_RTC=y, I tried on x86 the rtctest program found in
> linux-2.6.10/Documentation/rtc.txt. However, it failed at:
> 
> ioctl(fd, RTC_UIE_ON, 0);
> 
> with:
> 
> ioctl: Inappropriate ioctl for device
> 
> Did I miss something? Maybe something else conflicts with CONFIG_RTC?
> 
> Cheers.

Do you have an HPET timer enabled?  That could cause a conflict.

Does /proc/interrupts report rtc interrupts increasing when you
run rtctest?
I.e., does the number of this line increase like this?

   8:        131    IO-APIC-edge  rtc

rtctest works for me (2.6.11-rc4).  Maybe send me the strace
output when you run rtctest and your .config file.
Oh, and your kernel boot log, maybe there are some rtc driver
messages in it.

-- 
~Randy

  reply	other threads:[~2005-02-15  3:55 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-02-13 21:41 RTC Inappropriate ioctl for device Aurélien GÉRÔME
2005-02-15  3:45 ` Randy.Dunlap [this message]
2005-02-15 11:16   ` Aurélien GÉRÔME
2005-02-15 16:48     ` Randy.Dunlap
2005-02-15 19:35       ` Aurélien GÉRÔME

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