question for the all-knowing - firewire audio hardware

question for the all-knowing - firewire audio hardware

[S. Aguinaga]

Hello!

I have a couple of machines connected to FireWire Motu devices (running OS X).  We want to develop some new apps on linux and the only info I've found is: http://www.olafchrist.de/ieee1394/index.php, but its rather old and single device specific.

Are there any other solutions available? Or are there other devices (firewire) that are supported by the ALSA project?

Any info on this will be great!!

// Sal 

Re: question for the all-knowing - firewire audio hardware

[John Rigg]

On Wed, Dec 03, 2008 at 09:43:56AM -0800, S. Aguinaga wrote:
> I have a couple of machines connected to FireWire Motu devices (running OS X).  We want to develop some new apps on linux and the only info I've found is: http://www.olafchrist.de/ieee1394/index.php, but its rather old and single device specific.
> 
> Are there any other solutions available? Or are there other devices (firewire) that are supported by the ALSA project?

Have you looked here?
http://www.ffado.org

John

Re: question for the all-knowing - firewire audio hardware

[S. Aguinaga]

Hi John,

Thank you, I went to the site and downloaded everything (including the dependencies, to be able to build ffado) but ran into one problem: 
The README file says to launch the daemon, but it fails:

  jackd -v  -d firewire
getting driver descriptor from /usr/lib/jack/jack_alsa.so
getting driver descriptor from /usr/lib/jack/jack_dummy.so
getting driver descriptor from /usr/lib/jack/jack_freebob.so
getting driver descriptor from /usr/lib/jack/jack_oss.so
jackd: unknown driver 'firewire'
 
I realize this is loosely related to alsa-devel, but ...
Launching the qjackctl  raises other issues ... when I start it, it's stopped immediately due to:
 

cannot create /dev/shm/jack-1000 directory (Permission denied)
cannot create server sockets
cannot create engine

and noticed that the only options under "Interface" setup are:
hw:0, plughw:0,  /dev/dsp ... but all these correspond to the built-in HDA card and not my firewire.

only one device is register as a card:
cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0x9b500000 irq 20
 
I do have a /dev/raw1394 ... but something is not configuring it as an audio device, right? 


// Sal


________________________________
From: John Rigng <?
aldev@sound-man.co.uk>
To: S. Aguinaga <sa_jr@yahoo.com>
Cc: alsa-devel@alsa-project.org
Sent: Wednesday, December 3, 2008 12:24:23 PM
Subject: Re: [alsa-devel] question for the all-knowing - firewire audio hardware

On Wed, Dec 03, 2008 at 09:43:56AM -0800, S. Aguinaga wrote:
> I have a couple of machines connected to FireWire Motu devices (running OS X).  We want to develop some new apps on linux and the only info I've found is: http://www.olafchrist.de/ieee1394/index.php, but its rather old and single device specific.
> 
> Are there any other solutions available? Or are there other devices (firewire) that are supported by the ALSA project?

Have you looked here?
http://www.ffado.org

John

Re: question for the all-knowing - firewire audio hardware

[John Rigg]

On Wed, Dec 03, 2008 at 02:28:43PM -0800, S. Aguinaga wrote:
> Thank you, I went to the site and downloaded everything (including the dependencies, to be able to build ffado) but ran into one problem: 
> The README file says to launch the daemon, but it fails:
> 
>   jackd -v  -d firewire
> getting driver descriptor from /usr/lib/jack/jack_alsa.so
> getting driver descriptor from /usr/lib/jack/jack_dummy.so
> getting driver descriptor from /usr/lib/jack/jack_freebob.so
> getting driver descriptor from /usr/lib/jack/jack_oss.so
> jackd: unknown driver 'firewire'

Do you have more than one version of jack installed, eg. one
in /usr/lib and one in /usr/local/lib? You might have seen
this already, but it's important:
http://subversion.ffado.org/wiki/AvoidingParallelInstallations.

If the documentation at ffado.org doesn't help you solve the
problem, the jack-devel mailing list might be a better place
to ask.

John