Provided by: linux-doc-2.6.15_2.6.15-23.39_all bug

NAME

       piix_sata_probe - Probe PCI device for present SATA devices

SYNOPSIS

       int piix_sata_probe  (struct ata_port * ap);

ARGUMENTS

       ap     Port associated with the PCI device we wish to probe

DESCRIPTION

       Reads  SATA  PCI  device’s  PCI  config register Port Configuration and
       Status (PCS) to determine port and device availability.

LOCKING

       None (inherited from caller).

RETURNS

       Non-zero if port is enabled, it may or may not have a  device  attached
       in  that  case  (PRESENT bit would only be set if BIOS probe was done).
       Zero is returned if port is disabled.

AUTHOR

       Jeff Garzik.