esp-idf/components/vfs/Kconfig

menu "Virtual file system"

    config VFS_SUPPRESS_SELECT_DEBUG_OUTPUT
        bool "Suppress select() related debug outputs"
        default y
        help
            Select() related functions might produce an unconveniently lot of
            debug outputs when one sets the default log level to DEBUG or higher.
            It is possible to suppress these debug outputs by enabling this
            option.

    config VFS_SUPPORT_TERMIOS
        bool "Add support for termios.h"
        default y
        help
            Disabling this option can save memory when the support for termios.h is not required.

    menu "Host File System I/O (Semihosting)"
        config SEMIHOSTFS_MAX_MOUNT_POINTS
            int "Maximum number of the host filesystem mount points"
            default 1
            help
                Define maximum number of host filesystem mount points.

        config SEMIHOSTFS_HOST_PATH_MAX_LEN
            int "Maximum path length for the host base directory"
            default 128
            help
                Define maximum path length for the host base directory which is to be mounted.
                If host path passed to esp_vfs_semihost_register() is longer than this value
                it will be truncated.
    endmenu

endmenu