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NAME

       ata_mmio_data_xfer - Transfer data by MMIO

SYNOPSIS

       void ata_mmio_data_xfer  (struct ata_port * ap, unsigned char * buf,
                                  unsigned int buflen, int write_data);

ARGUMENTS

       ap     port to read/write

       buf    data buffer

       buflen buffer length

       write_data
              read/write

DESCRIPTION

       Transfer data from/to the device data register by MMIO.

LOCKING

       Inherited from caller.

AUTHOR

       Jeff Garzik.