CONFIG_BT_ATT_TX_MAX

Maximum number of queued outgoing ATT PDUs

Type: int

Help

Number of ATT PDUs that can be at a single moment queued for transmission. If the application tries to send more than this amount the calls will block until an existing queued PDU gets sent.

Direct dependencies

BT_CONN && BT_HCI_HOST && BT_HCI && BT

(Includes any dependencies from ifs and menus.)

Default

  • 2

Kconfig definition

At subsys/bluetooth/host/Kconfig.gatt:27

Included via Kconfig:8Kconfig.zephyr:41subsys/Kconfig:6subsys/bluetooth/Kconfig:152subsys/bluetooth/host/Kconfig:393

Menu path: (Top) → Bluetooth → ATT and GATT Options

config BT_ATT_TX_MAX
    int "Maximum number of queued outgoing ATT PDUs"
    range 1 BT_L2CAP_TX_BUF_COUNT
    default 2
    depends on BT_CONN && BT_HCI_HOST && BT_HCI && BT
    help
      Number of ATT PDUs that can be at a single moment queued for
      transmission. If the application tries to send more than this
      amount the calls will block until an existing queued PDU gets
      sent.

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