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.