Navigation: Linux Kernel Driver DataBase - web LKDDB: Main index - I index

CONFIG_INDIRECT_PIO: Access I/O in non-MMIO mode

General informations

The Linux kernel configuration item CONFIG_INDIRECT_PIO:

Help text

On some platforms where no separate I/O space exists, there are I/O hosts which can not be accessed in MMIO mode. Using the logical PIO mechanism, the host-local I/O resource can be mapped into system logic PIO space shared with MMIO hosts, such as PCI/PCIe, then the system can access the I/O devices with the mapped-logic PIO through I/O accessors.

This way has relatively little I/O performance cost. Please make sure your devices really need this configure item enabled.

When in doubt, say N.

Hardware

LKDDb

Raw data from LKDDb:

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

Automatic links from Google (and ads)

Custom Search

Popular queries:

Navigation: Linux Kernel Driver DataBase - web LKDDB: main index - I index

Automatically generated (in year 2024). See also LKDDb sources on GitLab