linux-kernel - Re: [PATCH] RTC: Add mmap method to rtc character 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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <20060729125427.GA6669@localhost.localdomain>
Date:	Sat, 29 Jul 2006 08:54:27 -0400
From:	Neil Horman <nhorman@...driver.com>
To:	Bill Huey <billh@...ppy.monkey.org>
Cc:	Jim Gettys <jg@...top.org>, "H. Peter Anvin" <hpa@...or.com>,
	Dave Airlie <airlied@...il.com>,
	Segher Boessenkool <segher@...nel.crashing.org>,
	linux-kernel@...r.kernel.org, a.zummo@...ertech.it,
	jg@...edesktop.org, Keith Packard <keithp@...thp.com>
Subject: Re: [PATCH] RTC: Add mmap method to rtc character driver

On Fri, Jul 28, 2006 at 09:28:20PM -0700, Bill Huey wrote:
> On Tue, Jul 25, 2006 at 05:39:01PM -0400, Jim Gettys wrote:
> > Keith's the expert (who wrote the smart scheduler): I'd take a wild ass
> > guess that 10ms is good enough.
> > 
> > Maybe people can keep him on the cc list this time...
> 
> Not to poop on people's parade, but the last time I looked /dev/rtc was
> a single instance device, right ? If this reasoning is true, then mplayer
> and other apps that want to open it can't.
> 
> What's the story with this ?
> 
Its always been the case.  Its hardware can only support one timer (or at least
one timer period), and as such multiple users would interefere with each other.

Regards
Neil

> bill
-
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/