From alsa-devel-owner@alsa.jcu.cz  Sun Feb 21 03:03:06 1999
Received: from post.mail.demon.net (finch-post-10.mail.demon.net [194.217.242.38])
	by marvin.jcu.cz (8.9.1a/8.9.1) with ESMTP id DAA00031
	for <alsa-devel@alsa.jcu.cz>; Sun, 21 Feb 1999 03:02:53 +0100
Received: from [212.228.182.246] (helo=ariel.sr.home)
	by post.mail.demon.net with esmtp (Exim 2.12 #1)
	id 10EOEN-0002j9-00
	for alsa-devel@alsa.jcu.cz; Sun, 21 Feb 1999 02:02:51 +0000
Received: (from steve@localhost)
	by ariel.sr.home (8.8.7/8.8.7) id CAA01845
	for alsa-devel@alsa.jcu.cz; Sun, 21 Feb 1999 02:02:17 GMT
Date: Sun, 21 Feb 1999 02:02:17 GMT
From: Steve Ratcliffe <steve@parabola.demon.co.uk>
Message-Id: <199902210202.CAA01845@ariel.sr.home>
To: alsa-devel@alsa.jcu.cz
Subject: Re: More PCM/RT stuff (replies mostly)
Reply-To: alsa-devel@alsa.jcu.cz
Sender: alsa-devel-owner@alsa.jcu.cz
Precedence: list

> Frank wrote:
> > >Perhaps an other timing clock can be considered: the RTC (real-time clock)
> > >which is standard available on Intel systems and is capable of (but almost
> > >never used for) generating interrupts. Frequencies up to 8192 kHz should be
> > >possible, with 1024Hz being default. See Documentation/rtc.txt in the Linux
> > >sources for more information. This would also be a great candidate for the
> > >sequencer timer.

I have put together a module that uses this interrupt source.  The module
is totally optional, if you load it and then open the sequencer it
will be used, otherwise not.

It appears to work, but I've got no real way of testing it from the
precise timing point of view.  So I have put the code up for you all to
try out.

	http://ds.dial.pipex.com/sterat/alsa/hires.shtml

..Steve

