From: Neil Horman <nhorman@tuxdriver.com>
To: Bill Huey <billh@gnuppy.monkey.org>
Cc: Jim Gettys <jg@laptop.org>, "H. Peter Anvin" <hpa@zytor.com>,
Dave Airlie <airlied@gmail.com>,
Segher Boessenkool <segher@kernel.crashing.org>,
linux-kernel@vger.kernel.org, a.zummo@towertech.it,
jg@freedesktop.org, Keith Packard <keithp@keithp.com>
Subject: Re: [PATCH] RTC: Add mmap method to rtc character driver
Date: Sat, 29 Jul 2006 08:54:27 -0400 [thread overview]
Message-ID: <20060729125427.GA6669@localhost.localdomain> (raw)
In-Reply-To: <20060729042820.GA16133@gnuppy.monkey.org>
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
next prev parent reply other threads:[~2006-07-29 12:59 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-25 17:41 [PATCH] RTC: Add mmap method to rtc character driver Neil Horman
2006-07-25 17:55 ` Arjan van de Ven
2006-07-25 18:01 ` Jim Gettys
2006-07-25 18:22 ` Neil Horman
2006-07-25 18:32 ` Arjan van de Ven
2006-07-25 18:43 ` Neil Horman
2006-07-25 18:53 ` Arjan van de Ven
2006-07-25 19:03 ` Neil Horman
2006-07-25 19:06 ` Arjan van de Ven
2006-07-25 19:07 ` John W. Linville
2006-07-25 19:16 ` Arjan van de Ven
2006-07-25 19:08 ` H. Peter Anvin
2006-07-25 17:57 ` Segher Boessenkool
2006-07-25 18:28 ` Neil Horman
2006-07-25 18:56 ` Segher Boessenkool
2006-07-25 19:07 ` Neil Horman
2006-07-25 19:10 ` H. Peter Anvin
2006-07-25 19:21 ` Neil Horman
2006-07-25 19:31 ` Segher Boessenkool
2006-07-25 19:47 ` Neil Horman
2006-07-25 20:04 ` Dave Airlie
2006-07-25 20:24 ` H. Peter Anvin
2006-07-25 20:47 ` Neil Horman
2006-07-25 20:50 ` H. Peter Anvin
2006-07-25 22:25 ` Neil Horman
2006-07-25 22:33 ` H. Peter Anvin
2006-07-25 23:10 ` Neil Horman
2006-07-25 23:22 ` H. Peter Anvin
2006-07-26 0:03 ` Neil Horman
2006-07-25 23:29 ` David Lang
2006-07-26 0:18 ` Neil Horman
2006-07-25 23:29 ` Segher Boessenkool
2006-07-25 23:56 ` Neil Horman
2006-07-26 0:02 ` H. Peter Anvin
2006-07-26 0:20 ` Neil Horman
2006-07-26 0:36 ` H. Peter Anvin
2006-07-26 14:45 ` A better interface, perhaps: a timed signal flag Theodore Tso
2006-07-28 13:33 ` Steven Rostedt
2006-07-28 14:52 ` Theodore Tso
2006-07-28 15:05 ` Steven Rostedt
2006-07-28 16:41 ` Alan Cox
2006-07-28 16:44 ` Steven Rostedt
2006-07-28 20:01 ` Alan Cox
2006-07-28 20:12 ` Steven Rostedt
2006-07-28 20:36 ` Alan Cox
2006-07-28 20:31 ` Steven Rostedt
2006-07-28 17:11 ` H. Peter Anvin
2006-07-25 20:58 ` [PATCH] RTC: Add mmap method to rtc character driver Jim Gettys
2006-07-25 21:04 ` H. Peter Anvin
2006-07-25 21:14 ` Jim Gettys
2006-07-25 21:18 ` H. Peter Anvin
2006-07-25 21:39 ` Jim Gettys
2006-07-29 4:28 ` Bill Huey
2006-07-29 12:54 ` Neil Horman [this message]
2006-07-29 20:41 ` Bill Huey
2006-07-29 21:43 ` Neil Horman
2006-07-29 22:45 ` Keith Packard
2006-07-29 23:18 ` Edgar Toernig
2006-07-29 21:49 ` Edgar Toernig
2006-07-29 22:51 ` itimer again (Re: [PATCH] RTC: Add mmap method to rtc character driver) Bill Huey
2006-07-29 23:35 ` Nicholas Miell
2006-07-30 1:00 ` Bill Huey
2006-07-30 1:22 ` Nicholas Miell
2006-07-30 1:39 ` Bill Huey
2006-07-30 2:02 ` Nicholas Miell
2006-07-30 14:33 ` Theodore Tso
2006-07-30 22:20 ` Bill Huey
2006-07-31 15:40 ` Theodore Tso
2006-07-30 0:16 ` Edgar Toernig
2006-07-30 0:24 ` Bill Huey
2006-07-29 14:02 ` [PATCH] RTC: Add mmap method to rtc character driver Thomas Gleixner
2006-07-26 13:17 ` Martin J. Bligh
2006-08-02 3:54 ` john stultz
2006-08-02 4:26 ` H. Peter Anvin
2006-08-02 4:34 ` john stultz
2006-07-25 23:26 ` Segher Boessenkool
2006-07-26 0:10 ` Neil Horman
2006-07-25 20:03 ` Paul Mackerras
2006-07-25 23:27 ` Segher Boessenkool
2006-07-26 0:06 ` Neil Horman
2006-07-25 18:00 ` Jim Gettys
2006-07-25 18:17 ` Neil Horman
2006-07-26 15:16 ` Andi Kleen
2006-07-26 17:25 ` Jim Gettys
2006-07-27 23:53 ` Paul Mackerras
2006-07-28 3:29 ` Jim Gettys
2006-07-28 11:59 ` Neil Horman
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