:orphan:

.. title:: CDC_ACM_IAD

.. option:: CONFIG_CDC_ACM_IAD

*Force using Interface Association Descriptor*

Type: ``bool``

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.

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

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

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

Default
=======

- y

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

.. highlight:: kconfig

At ``subsys/usb/class/Kconfig:47``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:34`` → ``subsys/Kconfig:45`` → ``subsys/usb/Kconfig:144``

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

.. parsed-literal::

    config CDC_ACM_IAD
    	bool "Force using Interface Association Descriptor"
    	default y
    	depends on \ :option:`USB_CDC_ACM <CONFIG_USB_CDC_ACM>` && \ :option:`USB_DEVICE_STACK <CONFIG_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.)*