menuconfig RT_SERIAL_VIRTUAL
    bool "Virtual Serial in video"
    depends on RT_GRAPHIC_FB
    depends on RT_INPUT_KEYBOARD
    default n

choice
    prompt "Rendering font(psf)"
    default RT_SERIAL_VIRTUAL_FONT_UNI2_FIXED16
    depends on RT_SERIAL_VIRTUAL

    config RT_SERIAL_VIRTUAL_FONT_UNI2_FIXED16
        bool "uni2 fixed16"

    config RT_SERIAL_VIRTUAL_FONT_UNI2_VGA16
        bool "uni2 vga16"
endchoice