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ACARDIDE(4) Device Drivers Manual ACARDIDE(4) NAME acardide - acard IDE disk controllers driver SYNOPSIS acardide* at pci? dev ? function ? flags 0x0000 DESCRIPTION The acardide driver supports the following IDE controllers: Acard ATP850U Ultra33 Acard ATP860 Ultra66 Acard ATP860-A Ultra66 Acard ATP865-A Ultra100 It provides the interface with the hardware for the ata(4) driver. The 0x0002 flag forces the acardide 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 8.0 October 24, 2003 NetBSD 8.0