f_audio_get_alt   474 drivers/usb/gadget/function/f_uac1.c static int f_audio_get_alt(struct usb_function *f, unsigned intf)
f_audio_get_alt   653 drivers/usb/gadget/function/f_uac1_legacy.c static int f_audio_get_alt(struct usb_function *f, unsigned intf)