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.

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

AUTHOR Jeff Garzik Author.

COPYRIGHT Kernel Hackers Manual 2.6. September 2010 ATA_DEV_CLASSIFY(9)