Symbol: MTK_ISO_IFNUM
drivers/bluetooth/btmtk.c
991
err = usb_set_interface(btmtk_data->udev, MTK_ISO_IFNUM, 1);
drivers/bluetooth/btusb.c
2907
btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);