[PlanetCCRMA] Fedora rt kernels and ffado

[Fernando Lopez-Lezcano]

On Sun, 2010-05-09 at 16:44 -0700, Fernando Lopez-Lezcano wrote:
> On Sun, 2010-05-09 at 10:18 -0700, Fernando Lopez-Lezcano wrote:
> > On Fri, 2010-04-23 at 13:42 -0700, John Lyon wrote:
> > > Hello,
> > > 
> > > I've spent a couple of days trying to sort out my problem, so far with
> > > no luck.  I hope one or more of you has the answer.  I've looked
> > > through the PlanetCCRMA mailing list archive, and I see clues, but not
> > > enough information for me to go on.  Here is my problem.  
> > 
> > Sigh. I can't answer right away but I will look at this. I _thought_ I
> > was still building the Planet CCRMA rt kernels with the old firewire
> > stack. The Fedora kernels are, well, a dead end for firewire sound in
> > the name of "progress" (since fc7!). 
> 
> BTW, this is the url to read:
> https://ieee1394.wiki.kernel.org/index.php/Juju_Migration
...
> I have an install of fc12 that I am updating to the latest right now.
> I'll check what's there when the upgrade is done. In fc11 it looks like
> for the rt Planet CCRMA kernels the old stack is built in, I don't think
> fc12 would be different... but... well, we'll see. 

(it is a netbook with no firewire interface but...)

This is booting into 2.6.31.12-1.rt20.1.fc12.ccrma. The kernel is built
with the old firewire stack, so that should be fine. Starting "jackd -d
firewire" does print "firewire ERR: FFADO: Error creating virtual
device" which is to be expected as there is no firewire device attached.
libraw1394 is not the latest (2.0.4 instead of 2.0.5). libdc1394 is
2.1.2 which is fine. 

So all the pieces seem to be there. What versions do you have installed?
What kernel do are you booting into? (do a "uname -r" to find out). What
kernel modules are loaded? (/sbin/lsmod - that would let us know which
stack is loaded). 

Exactly what does jackd -d firewire print when it starts?

I suspect a permissions problem if everything else is fine...
-- Fernando