PIIXIDE(4)              NetBSD Kernel Interfaces Manual             PIIXIDE(4)


NAME
piixide -- Intel IDE/SATA disk controllers driver
SYNOPSIS
piixide* at pci? dev ? function ? flags 0x0000
DESCRIPTION
The piixide driver supports the Intel PIIX, PIIX3, PIIX4, and 82801 (ICH/ICH0/ICH2/ICH3/ICH4/ICH5/ICH6/ICH7/ICH8/ICH9) IDE/SATA controllers and provides the interface with the hardware for the ata(4) driver. The 0x0002 flag forces the piixide driver to disable DMA on chipsets for which DMA would normally be enabled. This can be used as a debugging aid, or to work around problems where the IDE controller is wired up to the system incorrectly.
SEE ALSO
ata(4), atapi(4), intro(4), pci(4), pciide(4), wd(4), wdc(4)
BUGS
The timings used for the PIO and DMA modes for controllers listed above are for a PCI bus running at 30 or 33 MHz. This driver may not work properly on overclocked systems. NetBSD 5.0_RC4 August 31, 2007 NetBSD 5.0_RC4

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