init_waitqueue_head(&acard->wavefront.interrupt_sleeper);
spin_lock_init(&acard->wavefront.midi.open);
spin_lock_init(&acard->wavefront.midi.virtual);
init_waitqueue_head(&acard->wavefront.interrupt_sleeper);
spin_lock_init(&acard->wavefront.midi.open);
spin_lock_init(&acard->wavefront.midi.virtual);