linux-kernel - Re: [PATCH 1/7] Blackfin RTC driver: the frequency function is in units of Hz, not units of seconds, so lock our driver down to 1 Hz

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Message-ID: <20071204172634.50492e1e@i1501.lan.towertech.it>
Date:	Tue, 4 Dec 2007 17:26:34 +0100
From:	Alessandro Zummo <alessandro.zummo@...ertech.it>
To:	Bryan Wu <bryan.wu@...log.com>
Cc:	rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org,
	uclinux-dist-devel@...ckfin.uclinux.org,
	Mike Frysinger <michael.frysinger@...log.com>,
	Bryan Wu <bryan.wu@...log.com>
Subject: Re: [PATCH 1/7] Blackfin RTC driver: the frequency function is in
 units of Hz, not units of seconds, so lock our driver down to 1 Hz

On Fri, 23 Nov 2007 18:08:26 +0800
Bryan Wu <bryan.wu@...log.com> wrote:

 Hi, I fannly got some time to review the patches. Seems ok, the
 only question is...

> static int bfin_irq_set_freq(struct device *dev, int freq)
>  {
> -	struct bfin_rtc *rtc = dev_get_drvdata(dev);
>  	stampit();
> -	rtc->rtc_dev->irq_freq = freq;
> -	return 0;
> +	return -ENOTTY;
>  }

 .. why ENOTTY here?

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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