ATA_DEV_CLASSIFY(9)                       libata Library                      ATA_DEV_CLASSIFY(9)



NAME
       ata_dev_classify - determine device type based on ATA-spec signature

SYNOPSIS
       unsigned int ata_dev_classify(const struct ata_taskfile * tf);

ARGUMENTS
       tf
           ATA taskfile register set for device to be identified

DESCRIPTION
       Determine from taskfile register contents whether a device is ATA or ATAPI, as per
       “Signature and persistence” section of ATA/PI spec (volume 1, sect 5.14).

       LOCKING: None.

RETURN
       Device type, ATA_DEV_ATA, ATA_DEV_ATAPI, ATA_DEV_PMP, ATA_DEV_ZAC, or ATA_DEV_UNKNOWN the
       event of failure.

AUTHOR
       Jeff Garzik
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                       ATA_DEV_CLASSIFY(9)