card not detected on 3.18.11 on rpi2

hi I run an rpi-update on an rpi2 and then add the following lines to

I don't see the devicce listed under aplay -l so
I follow the instructions and;
wget www.hifiberry.com/files/dac/check-system
mv check-system check-system.dac
chmod u+rx ./check-system.dac

and I see the message;
module file /lib/modules/3.18.11-v7+/kernel/drivers/dma/bcm2708-dmaengine.ko not found
but the sine wave does play.

I saw the same behavior before I ran rpi-update using;
module file /lib/modules/3.18.10-v7+/kernel/drivers/dma/bcm2708-dmaengine.ko not found

I'm running raspbian; a uname -a gives;
Linux raspberrypi 3.18.11-v7+ #780 SMP PREEMPT Mon Apr 20 14:59:10 BST 2015 armv7l GNU/Linux

Also I has an rs electronics case - I've spend the last 4 hours cutting and trimming the case up just to get the mmini jack dac card installed.
Ironically I ordered the mini jack version supposedly supposedly to make the install trivial.
what are my options for case fdore therpi2 and mini jack dac card?


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