Kernel Interfaces Manual
NAME cypide — Cypress IDE disk controllers driver
SYNOPSIS cypide* at pci? dev ? function ? flags 0x0000
driver supports the Cypress 82C693 IDE controllers, and provides the interface with the hardware for the ata(4)
The 0x0002 flag forces the cypide 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.
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.