:orphan:

.. title:: BT_CTLR_RX_BUFFERS

.. option:: CONFIG_BT_CTLR_RX_BUFFERS

*Number of Rx buffers*

Type: ``int``

Help
====

.. code-block:: none

    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
===================

\ :option:`BT_CTLR <CONFIG_BT_CTLR>` && \ :option:`BT_HCI <CONFIG_BT_HCI>` && \ :option:`BT <CONFIG_BT>`

*(Includes any dependencies from ifs and menus.)*

Defaults
========

- 6 if \ :option:`BT_HCI_RAW <CONFIG_BT_HCI_RAW>`
- 1

Kconfig definition
==================



At ``<Zephyr Subsystem>/bluetooth/controller/Kconfig:165``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:34`` → ``<Zephyr Subsystem>/Kconfig:9`` → ``<Zephyr Subsystem>/bluetooth/Kconfig:307``

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

.. code-block:: kconfig

    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.)*