:orphan:

.. title:: BT_ISO_TX_FRAG_COUNT

.. option:: CONFIG_BT_ISO_TX_FRAG_COUNT

*Number of ISO TX fragment buffers*

Type: ``int``

Help
====

Number of buffers available for fragments of TX buffers. Warning:
setting this to 0 means that the application must ensure that
queued TX buffers never need to be fragmented, i.e. that the
controller's buffer size is large enough. If this is not ensured,
and there are no dedicated fragment buffers, a deadlock may occur.
In most cases the default value of 2 is a safe bet.

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

\ :option:`BT_AUDIO_UNICAST <CONFIG_BT_AUDIO_UNICAST>` && \ :option:`BT_CONN <CONFIG_BT_CONN>` && \ :option:`BT_AUDIO <CONFIG_BT_AUDIO>` && \ :option:`BT_HCI_HOST <CONFIG_BT_HCI_HOST>` && \ :option:`BT_HCI <CONFIG_BT_HCI>` && \ :option:`BT <CONFIG_BT>`

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

Default
=======

- 2

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

.. highlight:: kconfig

At ``subsys/bluetooth/host/audio/Kconfig:56``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:34`` → ``subsys/Kconfig:9`` → ``subsys/bluetooth/Kconfig:239`` → ``subsys/bluetooth/host/Kconfig:166``

Menu path: (Top) → Sub Systems and OS Services → Bluetooth → Bluetooth Audio support [Experimental] → Bluetooth Unicast Audio Support

.. parsed-literal::

    config BT_ISO_TX_FRAG_COUNT
    	int "Number of ISO TX fragment buffers"
    	range 0 255
    	default 2
    	depends on \ :option:`BT_AUDIO_UNICAST <CONFIG_BT_AUDIO_UNICAST>` && \ :option:`BT_CONN <CONFIG_BT_CONN>` && \ :option:`BT_AUDIO <CONFIG_BT_AUDIO>` && \ :option:`BT_HCI_HOST <CONFIG_BT_HCI_HOST>` && \ :option:`BT_HCI <CONFIG_BT_HCI>` && \ :option:`BT <CONFIG_BT>`
    	help
    	  Number of buffers available for fragments of TX buffers. Warning:
    	  setting this to 0 means that the application must ensure that
    	  queued TX buffers never need to be fragmented, i.e. that the
    	  controller's buffer size is large enough. If this is not ensured,
    	  and there are no dedicated fragment buffers, a deadlock may occur.
    	  In most cases the default value of 2 is a safe bet.

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