udev-acl should touch the ACLs for controlC devices last. This patch fixes the problem: http://0pointer.de/public/0001-enumeration-move-ALSA-control-devices-to-the-end-of-.patch The patch is a result of a discussion with Kay. He didn't bless the patch itself yet but he did bless the general approach. Would be good if this could be merged into udev before the F12 alpha freeze, because otherwise we have broken ACL handling for audio.
patch now blessed by kay and commited to upstream git.
http://git.kernel.org/?p=linux/hotplug/udev.git;a=commit;h=3bf768245b98479a14190e1e1d32ef5fae3ddf8a
built udev-145-3.fc12