LIBS += drivers/rtc/librtc.o
LIBS += drivers/serial/libserial.o
LIBS += drivers/twserial/libtws.o
-LIBS += drivers/usb/eth/libusb_eth.a
+LIBS += drivers/usb/eth/libusb_eth.o
LIBS += drivers/usb/gadget/libusb_gadget.o
LIBS += drivers/usb/host/libusb_host.o
LIBS += drivers/usb/musb/libusb_musb.o