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.