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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

BT_ISO && BT_HCI && BT

(Includes any dependencies from ifs and menus.)

Default

  • 2

Kconfig definition

At subsys/bluetooth/Kconfig:277

Included via Kconfig:8Kconfig.zephyr:42subsys/Kconfig:9

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

config BT_ISO_TX_FRAG_COUNT
    int "Number of ISO TX fragment buffers"
    range 0 255
    default 2
    depends on BT_ISO && 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.)