linux-kernel - Re: X86: Impossible select Enhanced Real Time Clock Support (legacy PC RTC driver)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1399061039.1910.4.camel@vger.seibold.net>
Date:	Fri, 02 May 2014 22:03:59 +0200
From:	Stefani Seibold <stefani@...bold.net>
To:	Alessandro Zummo <a.zummo@...ertech.it>
Cc:	John Stultz <john.stultz@...aro.org>,
	Randy Dunlap <rdunlap@...radead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Greg KH <greg@...ah.com>,
	"rtc-linux@...glegroups.com" <rtc-linux@...glegroups.com>,
	Prarit Bhargava <prarit@...hat.com>
Subject: Re: X86: Impossible select Enhanced Real Time Clock Support (legacy
 PC RTC driver)

On Mon, 2014-04-28 at 20:20 +0200, Alessandro Zummo wrote:
> On Mon, 28 Apr 2014 11:16:37 -0700
> John Stultz <john.stultz@...aro.org> wrote:
> 
> > >> This breaks the API since there is no more misc device /dev/rtc
> > >> available without a udev rule or a link to /dev/rtc0.  
> > 
> > So yea.. I feel like that /dev/rtcN renaming (and API) break (which
> > was a huge and annoying pain) was back in the 2.6.18-ish era?
> 
>  It's very old and linking/renaming is around since then.
> 
> > But it sounds like the driver/char/rtc bit is dead code, and needs a
> > cleanup? Or is there some use of that code that you need that the
> > generic RTC layer doesn't have?
> 

The driver/char/rtc is not working code and should be a wrapper to the
first rtc device.

>  as far as I know, no recent distribution is using the old code
>  anymore and the new (well, not so new anymore) framework provides the same functionality.
>  

Embedded distribution use it and depending on the /dev/rtc device. So
what is missing is the /dev/rtc misc device 10,135.

- Stefani

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/