linux-kernel - Re: rtc: how should I handle an invalid state?

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Message-ID: <20080429145135.26d53758@i1501.lan.towertech.it>
Date:	Tue, 29 Apr 2008 14:51:35 +0200
From:	Alessandro Zummo <alessandro.zummo@...ertech.it>
To:	Uwe Kleine-König <Uwe.Kleine-Koenig@...i.com>
Cc:	David Brownell <dbrownell@...rs.sourceforge.net>,
	<linux-kernel@...r.kernel.org>
Subject: Re: rtc: how should I handle an invalid state?

On Tue, 29 Apr 2008 14:19:24 +0200
Uwe Kleine-König <Uwe.Kleine-Koenig@...i.com> wrote:

> Hello,
> 
> I'm still stuck with my rtc.  My current problem is setting the rtc
> using hwclock --systohc.
> 
> The problem is that hwclock tries to read the current time before
> setting the new one.  And if that fails, it doesn't update the rtc.

 That's a bug of hwclock. :( The correct behaviour for a driver
 is to return an error if the clock cannot be read.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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