CONFIG_DEFXX_MMIO: Use MMIO instead of PIO

General informations

The Linux kernel configuration item CONFIG_DEFXX_MMIO has multiple definitions:

Use MMIO instead of PIO found in drivers/net/fddi/Kconfig

The configuration item CONFIG_DEFXX_MMIO:

• prompt: Use MMIO instead of PIO
• type: bool
• depends on: ( CONFIG_PCI || CONFIG_EISA ) && ( CONFIG_DEFXX ) && ( CONFIG_PCI || CONFIG_EISA )
• defined in drivers/net/fddi/Kconfig
• found in Linux kernels: 3.2–3.19, 4.0–4.20, 5.0–5.12

Help text

This instructs the driver to use EISA or PCI memory-mapped I/O (MMIO) as appropriate instead of programmed I/O ports (PIO). Enabling this gives an improvement in processing time in parts of the driver, but it may cause problems with EISA (DEFEA) adapters. TURBOchannel does not have the concept of I/O ports, so MMIO is always used for these (DEFTA) adapters.

If unsure, say N.

Use MMIO instead of PIO found in drivers/net/Kconfig

The configuration item CONFIG_DEFXX_MMIO:

• prompt: Use MMIO instead of PIO
• type: bool
• depends on: ( CONFIG_PCI || CONFIG_EISA ) && ( CONFIG_DEFXX ) && ( CONFIG_PCI || CONFIG_EISA )
• defined in drivers/net/Kconfig
• found in Linux kernels: 2.6.21–2.6.39, 3.0–3.1

Help text

This instructs the driver to use EISA or PCI memory-mapped I/O (MMIO) as appropriate instead of programmed I/O ports (PIO). Enabling this gives an improvement in processing time in parts of the driver, but it may cause problems with EISA (DEFEA) adapters. TURBOchannel does not have the concept of I/O ports, so MMIO is always used for these (DEFTA) adapters.

If unsure, say N.

Hardware

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

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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