usb_audio_processing_unit_0
const struct usb_audio_processing_unit_0 *d0 = iot[id].u.pu_v1;
const struct usb_audio_processing_unit_0 *d0 = iot[id].u.pu_v1;
const struct usb_audio_processing_unit_0 *pu;
const struct usb_audio_processing_unit_0 *pu_v1;