ata_dev_classify (9)

Determine device type based on ata-spec signature

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  3. Kernel routines
  4. ata_dev_classify: Determine device type based on ata-spec signature
  1. Carta.tech
  2. Packages
  3. linux-manual-3.16
  4. 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.

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