f_audio_setup     386 drivers/usb/gadget/function/f_uac1.c f_audio_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
f_audio_setup     521 drivers/usb/gadget/function/f_uac1_legacy.c f_audio_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)