Name
ata_dev_classify —
determine device type based on ATA-spec signature
Synopsis
unsigned int ata_dev_classify ( | const struct ata_taskfile * tf); |
Arguments
const struct ata_taskfile * 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.