1CONFIG_USB_DEVICE_STACK_NEXT=y 2CONFIG_CDC_ACM_SERIAL_INITIALIZE_AT_BOOT=y 3CONFIG_CDC_ACM_SERIAL_PRODUCT_STRING="Zephyr USB shell sample" 4CONFIG_SHELL_BACKEND_SERIAL_CHECK_DTR=y 5CONFIG_USBD_CDC_ACM_LOG_LEVEL_OFF=y 6CONFIG_UART_LINE_CTRL=y 7CONFIG_LOG_DEFAULT_LEVEL=1 8