linux-kernel - Re: [rtc-linux] 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: <20071204175951.6c47fee4@i1501.lan.towertech.it>
Date:	Tue, 4 Dec 2007 17:59:51 +0100
From:	Alessandro Zummo <alessandro.zummo@...ertech.it>
To:	"Mike Frysinger" <vapier.adi@...il.com>
Cc:	rtc-linux@...glegroups.com, "Bryan Wu" <bryan.wu@...log.com>,
	linux-kernel@...r.kernel.org,
	uclinux-dist-devel@...ckfin.uclinux.org,
	"Mike Frysinger" <michael.frysinger@...log.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [rtc-linux] 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 Tue, 4 Dec 2007 11:56:54 -0500
"Mike Frysinger" <vapier.adi@...il.com> wrote:

> On Dec 4, 2007 11:49 AM, Alessandro Zummo <alessandro.zummo@...ertech.it> wrote:
> > On Tue, 4 Dec 2007 11:47:56 -0500
> > "Mike Frysinger" <vapier.adi@...il.com> wrote:
> > > the return of ENOTTY is to say "changing of freq isnt supported", not
> > > that the value is invalid.  but i can get the same behavior by
> > > deleting the function as the rtc-dev layer will take care of returning
> > > ENOTTY.
> > >
> > > so the behavior is for the RTC_IRQP_SET ioctl:
> > >  - return ENOTTY if you cannot change freq
> > >    - the rtc-dev layer will do this for you if you do not set irq_set_freq
> > >  - return EINVAL if the requested freq is not within the capabilities
> > > of the hardware
> > >
> > > sound about right ?
> >
> >  yes, it is. I agree about deleting it.
> 
> so, merge this patch and i'll follow up with another to delete the
> func and update the documentation ?

 ok. You have my 

 Signed-off-by: Alessandro Zummo <a.zummo@...ertech.it>

 on the whole patch set.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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