linux-kernel - Re: [RFE PATCH 2/2] rtc, add write functionality to sysfs

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Message-ID: <20130225155812.0758e093@linux.lan.towertech.it>
Date:	Mon, 25 Feb 2013 15:58:12 +0100
From:	Alessandro Zummo <a.zummo@...ertech.it>
To:	Prarit Bhargava <prarit@...hat.com>
Cc:	John Stultz <john.stultz@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"x86@...nel.org" <x86@...nel.org>,
	Matt Fleming <matt.fleming@...el.com>,
	David Vrabel <david.vrabel@...rix.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <ak@...ux.intel.com>,
	"linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
	"rtc-linux@...glegroups.com" <rtc-linux@...glegroups.com>
Subject: Re: [RFE PATCH 2/2] rtc, add write functionality to sysfs

On Sun, 24 Feb 2013 12:03:01 -0500
Prarit Bhargava <prarit@...hat.com> wrote:

> 
> AFAICT there is no way for me to "test" or use the write from userspace.
> hwclock uses the SET_TIME ioctl, which is a different code path AFAICT.
> 
> I'd like to be at least able to test this stuff when we make changes to it so I
> think having write functionality for date & time is worthwhile.
> 
> For me, I'm using these to heavily test ntp and ntpdate over system reboots.

 the point is: who will benefit from this patch? users? distributions?
 embedded distributions? if it's useful, then just go for it.


> OOC, Alessandro, why is the date & time split into two fields?

 because date and time are two different things and we expect
 sysfs to preferably have one value for each entry.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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