CONFIG_USB_DEVICE_STACK_NEXT=y CONFIG_CDC_ACM_SERIAL_INITIALIZE_AT_BOOT=y CONFIG_CDC_ACM_SERIAL_PRODUCT_STRING="Zephyr USB shell sample" CONFIG_SHELL_BACKEND_SERIAL_CHECK_DTR=y CONFIG_USBD_CDC_ACM_LOG_LEVEL_OFF=y CONFIG_UART_LINE_CTRL=y CONFIG_LOG_DEFAULT_LEVEL=1