[PlanetCCRMA] rt-kernel and firewire

S C Rigler riglersc at gmail.com
Wed May 2 17:24:10 PDT 2012

On Wed, May 2, 2012 at 3:49 PM, barb <barb at col-me.info> wrote:

> hi!
> i am new on this mailinglist and only here to investigate one thing i am
> working on currently. to connect the firewire saffire focusrite to my
> fc16 machine i am using the 3.0.17-1.rt33 kernel.
> the problem is, that i can only start up jack with firewire drivers (i
> use the new stack) when i am root. of course all the programms
> connecting to jack afterwards have to be started as root as well, which
> is not what i am aiming at.
> if i start them as user, i get a 'permisison denied' on the libffado. i
> checked all the permissions and am finally part of any group that exists
> on the system without success. the /dev/fw0 is set on a group, which i
> am part of (rw permissions for u+g).
I added a file called "99-firewire.rules" to /etc/udev/rules.d with the
following contents:

KERNEL=="fw*", MODE="0660",OWNER="root",GROUP="jackuser"

Obviously you would need to be a member of the "jackuser" group for it to

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