:orphan:

.. title:: CONFIG_CDC_ACM_IAD

.. kconfig:: CONFIG_CDC_ACM_IAD

CONFIG_CDC_ACM_IAD
##################

*Force using Interface Association Descriptor*

Type: ``bool``

Help
====

.. code-block:: none

    IAD should not be required for non-composite CDC ACM device,
    but Windows 7 fails to properly enumerate without it.
    Enable if you want CDC ACM to work with Windows 7.

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

\ :kconfig:`USB_CDC_ACM <CONFIG_USB_CDC_ACM>` && \ :kconfig:`USB_DEVICE_STACK <CONFIG_USB_DEVICE_STACK>`

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

Default
=======

- y

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



At ``<Zephyr>/subsys/usb/class/Kconfig.cdc:45``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:42`` → ``<Zephyr>/subsys/Kconfig:49`` → ``<Zephyr>/subsys/usb/Kconfig:161`` → ``<Zephyr>/subsys/usb/class/Kconfig:6``

Menu path: (Top) → Sub Systems and OS Services → USB Device Support → USB CDC ACM Device Class support

.. code-block:: kconfig

    config CDC_ACM_IAD
    	bool "Force using Interface Association Descriptor"
    	default y
    	depends on USB_CDC_ACM && USB_DEVICE_STACK
    	help
    	  IAD should not be required for non-composite CDC ACM device,
    	  but Windows 7 fails to properly enumerate without it.
    	  Enable if you want CDC ACM to work with Windows 7.

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