:orphan:

.. title:: CONFIG_BT_CTLR_ISO_RX_BUFFERS

.. kconfig:: CONFIG_BT_CTLR_ISO_RX_BUFFERS

CONFIG_BT_CTLR_ISO_RX_BUFFERS
#############################

*Number of Isochronous Rx buffers*

Type: ``int``

Help
====

.. code-block:: none

    Set the number of Isochronous Rx PDUs to be buffered in the
    controller. Number of required RX buffers would worst-case be
    the number of RX nodes prepared in one ISO event for each
    active ISO group. This depends on the number of bursts in an
    ISO group and number of groups, and may need to be set lower
    that the theoretical maximum. Default of 8 is for supporting
    two groups of 4 payloads, e.g. 2 CIGs with 2 CISes of BN=2.

Direct dependencies
===================

(\ :kconfig:`BT_CTLR_SYNC_ISO <CONFIG_BT_CTLR_SYNC_ISO>` || \ :kconfig:`BT_CTLR_CONN_ISO <CONFIG_BT_CTLR_CONN_ISO>`) && \ :kconfig:`BT_CTLR <CONFIG_BT_CTLR>` && \ :kconfig:`BT_HCI <CONFIG_BT_HCI>` && \ :kconfig:`BT <CONFIG_BT>`

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

Default
=======

- 8

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



At ``<Subsystem>/bluetooth/controller/Kconfig:201``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:44`` → ``<Subsystem>/Kconfig:9`` → ``<Subsystem>/bluetooth/Kconfig:181``

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

.. code-block:: kconfig

    config BT_CTLR_ISO_RX_BUFFERS
    	int "Number of Isochronous Rx buffers"
    	range 1 30
    	default 8
    	depends on (BT_CTLR_SYNC_ISO || BT_CTLR_CONN_ISO) && BT_CTLR && BT_HCI && BT
    	help
    	  Set the number of Isochronous Rx PDUs to be buffered in the
    	  controller. Number of required RX buffers would worst-case be
    	  the number of RX nodes prepared in one ISO event for each
    	  active ISO group. This depends on the number of bursts in an
    	  ISO group and number of groups, and may need to be set lower
    	  that the theoretical maximum. Default of 8 is for supporting
    	  two groups of 4 payloads, e.g. 2 CIGs with 2 CISes of BN=2.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*