-LUFA_OPTS += -D USB_HOST_ONLY\r
-LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"\r
+LUFA_OPTS = -D FIXED_CONTROL_ENDPOINT_SIZE=8\r
+LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1\r
+LUFA_OPTS += -D USE_FLASH_DESCRIPTORS\r
+LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"\r