---
name: "ata_mmio_data_xfer"
section: "9"
platform: "linux"
package: "linux-manual-2.6.18"
version: "2.6.18.dfsg.1-26etch2"
release: "Debian 4.0 (Etch)"
platforms: ["linux"]
url: "https://new.carta.tech/ata_mmio_data_xfer"
---

# ata\_mmio\_data\_xfer(9)

Transfer data by MMIO

## NAME

ata\_mmio\_data\_xfer - Transfer data by MMIO

## SYNOPSIS

**void ata\_mmio\_data\_xfer(struct ata\_device \*** *adev***, unsigned char \*** *buf***, unsigned int** *buflen***, int** *write\_data***);**

## ARGUMENTS

*adev*

device for this I/O

*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**

-

  Author.

## COPYRIGHT