CONFIG_BT_CTLR_RX_BUFFERS

Number of Rx buffers

Type: int

Help

Set the number of Rx PDUs to be buffered in the controller. In a 7.5ms
connection interval and 2M PHY, maximum 18 packets with L2CAP payload
size of 1 byte can be received.

Direct dependencies

BT_CTLR && BT_HCI && BT

(Includes any dependencies from ifs and menus.)

Defaults

• 6 if BT_HCI_RAW

• 1

Kconfig definition

At <Zephyr Subsystem>/bluetooth/controller/Kconfig:176

Included via Kconfig:8 → Kconfig.zephyr:44 → <Zephyr Subsystem>/Kconfig:9 → <Zephyr Subsystem>/bluetooth/Kconfig:175

Menu path: (Top) → Sub Systems and OS Services → Bluetooth → Bluetooth Controller

config BT_CTLR_RX_BUFFERS
    int "Number of Rx buffers"
    range 1 18
    default 6 if BT_HCI_RAW
    default 1
    depends on BT_CTLR && BT_HCI && BT
    help
      Set the number of Rx PDUs to be buffered in the controller. In a 7.5ms
      connection interval and 2M PHY, maximum 18 packets with L2CAP payload
      size of 1 byte can be received.

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