From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Witzel <witzel.thomas@domain.hid>
Subject: Re: [Xenomai-help] RTDM/ALSA hybrid driver ?
Date: Wed, 1 Nov 2006 07:45:22 -0500
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On Wednesday 01 November 2006 01:58, Romain Lenglet wrote:
> Since you wanted to develop/port your own device driver anyway, I
> just suggested to use JACK as an interface with your
> applications, instead of the ALSA interface. I believe that the
> JACK API/interface is better suited for realtime applications.
> So why not develop your own new JACK hard-realtime backend with
> your RTDM driver?
I just wanted to modify an existing driver Intel8x0 AC97 to do realtime 
playback of  a sample. I'm still pursuing this.
I have implemented a regular Linux userspace application for this at first and 
it provides a response latency smaller than 1 ms for 19 out of 20 triggers, 
but the 20th (on average) has latencies up to 20ms, which is totally 
unacceptable.

Thomas