1CONFIG_USB_DEVICE_STACK=y 2CONFIG_USB_DEVICE_PRODUCT="Zephyr USB shell sample" 3CONFIG_SHELL_BACKEND_SERIAL_CHECK_DTR=y 4CONFIG_USB_CDC_ACM_LOG_LEVEL_OFF=y 5CONFIG_UART_LINE_CTRL=y 6CONFIG_USB_DEVICE_INITIALIZE_AT_BOOT=n 7 8# POSIX_TIMERS requires an embedded C library while the native USB driver is incompatible with it. 9# So let's disable it. Once USB_NATIVE_POSIX supports embedded C libraries this can be removed. 10CONFIG_POSIX_API=n 11CONFIG_POSIX_TIMERS=n 12# DATE_SHELL requires POSIX_TIMERS 13CONFIG_DATE_SHELL=n 14