Re: Driver(s) for IEEE 1394 based break out boxes

["Jack O'Quin" <joq@io.com>]

> At Mon, 12 Jul 2004 21:19:30 +0200,
> Daniel Wagner wrote:
> > 
> > On the on hand, there exists already the IEEE 1394 stack with IEC
> > 61883 support in user-land.  I don't know if the libiec61883 is already
> > ready to use but still it exists.  As I understand the general idea
> > behind libraw1394 and libiec61883 is to do as much as possible in
> > users-pace.  Any application which wants to take advantage of IEEE 1394
> > based sound cards has to use those libraries.  I guess it means for
> > jack to have a new backend in order to use those cards.  But most
> > application wont be aware of this interface, I suppose.

Takashi Iwai <tiwai@suse.de> writes:
> IIRC, JACK has already a driver for IEC61883.
> Don't know whether it really works, though.

Bob Ham wrote an experimental IEC61883 driver which has been part of
JACK CVS for quite a while.  I doubt it's getting much use.

I don't know if it works either, having no hardware to test it.

> > The question is which way to go?  Get the break out boxes working with
> > the existing libraries or write an ALSA driver which implements those
> > parts again?  Personaly, I think ALSA might be the better idea but it
> > does not make use of the already written code.  Maybe there exists a
> > better way...
> 
> The user-space driver can be implemented on alsa-lib as a plugin.
> For example, you can find ALSA <-> JACK transparent layer.

An ALSA solution would be great, either user- or kernel-space.
-- 
  joq


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