Help¶

This option enables support for GATT Caching. When enabled the stack will register Client Supported Features and Database Hash characteristics which can be used by clients to detect if anything has changed on the GATT database.

Direct dependencies¶

BT_GATT_SERVICE_CHANGED && BT_CONN && BT_HCI_HOST && BT_HCI && BT

(Includes any dependencies from ifs and menus.)

Default¶

y

Symbols selected by this symbol¶

Symbols that select this symbol¶

BT_AUDIO_UNICAST

Kconfig definition¶

At <Zephyr>/subsys/bluetooth/host/Kconfig.gatt:92

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:34 → <Zephyr>/subsys/Kconfig:8 → <Zephyr>/subsys/bluetooth/Kconfig:239 → <Zephyr>/subsys/bluetooth/host/Kconfig:506

Menu path: (Top) → Sub Systems and OS Services → Bluetooth → ATT and GATT Options → GATT Service Changed support

config BT_GATT_CACHING
    bool "GATT Caching support"
    default y
    select TINYCRYPT
    select TINYCRYPT_AES
    select TINYCRYPT_AES_CMAC
    depends on BT_GATT_SERVICE_CHANGED && BT_CONN && BT_HCI_HOST && BT_HCI && BT
    help
      This option enables support for GATT Caching. When enabled the stack
      will register Client Supported Features and Database Hash
      characteristics which can be used by clients to detect if anything has
      changed on the GATT database.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)