snd_wavefront_mpu_id   25 include/sound/snd_wavefront.h         snd_wavefront_mpu_id     output_mpu;  /* most-recently-used */
snd_wavefront_mpu_id   26 include/sound/snd_wavefront.h         snd_wavefront_mpu_id     input_mpu;   /* most-recently-used */