f_audio_set_alt   429 drivers/usb/gadget/function/f_uac1.c static int f_audio_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
f_audio_set_alt   572 drivers/usb/gadget/function/f_uac1_legacy.c static int f_audio_set_alt(struct usb_function *f, unsigned intf, unsigned alt)