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¶

BT_AUDIO_UNICAST && BT_CONN && BT_AUDIO && BT_HCI_HOST && BT_HCI && BT

(Includes any dependencies from ifs and menus.)

Default¶

2

Kconfig definition¶

At <Zephyr>/subsys/bluetooth/host/audio/Kconfig:56

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

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

config BT_ISO_TX_FRAG_COUNT
    int "Number of ISO TX fragment buffers"
    range 0 255
    default 2
    depends on BT_AUDIO_UNICAST && BT_CONN && BT_AUDIO && BT_HCI_HOST && BT_HCI && 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.)