:orphan:

.. title:: CONFIG_PCIE_MSI

.. kconfig:: CONFIG_PCIE_MSI

CONFIG_PCIE_MSI
###############

*Enable support for PCI(e) MSI*

Type: ``bool``

Help
====

.. code-block:: none

    Use Message-Signaled Interrupts where possible. With this option
    enabled, PCI(e) devices which support MSI will be configured (at
    runtime) to use them. This is typically required for PCIe devices
    to generate interrupts at all.

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

\ :kconfig:`PCIE <CONFIG_PCIE>`

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

Defaults
========

No defaults. Implicitly defaults to ``n``.

Symbols that select this symbol
===============================

- \ :kconfig:`SOC_APOLLO_LAKE <CONFIG_SOC_APOLLO_LAKE>`
- \ :kconfig:`SOC_ELKHART_LAKE <CONFIG_SOC_ELKHART_LAKE>`
- \ :kconfig:`SOC_APOLLO_LAKE <CONFIG_SOC_APOLLO_LAKE>`
- \ :kconfig:`SOC_ELKHART_LAKE <CONFIG_SOC_ELKHART_LAKE>`

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



At ``<Zephyr Driver>/pcie/host/Kconfig:13``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:42`` → ``<Zephyr Driver>/Kconfig:34`` → ``<Zephyr Driver>/pcie/Kconfig:3``

Menu path: (Top) → Device Drivers → Enable new PCI/PCIe Root Complex support

.. code-block:: kconfig

    config PCIE_MSI
    	bool "Enable support for PCI(e) MSI"
    	depends on PCIE
    	help
    	  Use Message-Signaled Interrupts where possible. With this option
    	  enabled, PCI(e) devices which support MSI will be configured (at
    	  runtime) to use them. This is typically required for PCIe devices
    	  to generate interrupts at all.

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