CONFIG_IDEDMA_PCI_AUTO: Use PCI DMA by default when available

General informations

The Linux kernel configuration item CONFIG_IDEDMA_PCI_AUTO:

• prompt: Use PCI DMA by default when available
• type: bool
• depends on: (none)
• defined in drivers/ide/Kconfig
• found in Linux kernels: 2.5.45–2.5.75, 2.6.0–2.6.20

Help text

Prior to kernel version 2.1.112, Linux used to automatically use DMA for IDE drives and chipsets which support it. Due to concerns about a couple of cases where buggy hardware may have caused damage, the default is now to NOT use DMA automatically. To revert to the previous behaviour, say Y to this question.

If you suspect your hardware is at all flakey, say N here. Do NOT email the IDE kernel people regarding this issue!

It is normally safe to answer Y to this question unless your motherboard uses a VIA VP2 chipset, in which case you should 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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