libATA Developer's Guide
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ata_scsi_find_dev

Name

ata_scsi_find_dev -- lookup ata_device from scsi_cmnd

Synopsis

struct ata_device * ata_scsi_find_dev (struct ata_port * ap, struct scsi_device * scsidev);

Arguments

ap: ATA port to which the device is attached
scsidev: SCSI device from which we derive the ATA device

Description

Given various information provided in struct scsi_cmnd, map that onto an ATA bus, and using that mapping determine which ata_device is associated with the SCSI command to be sent.

LOCKING

spin_lock_irqsave(host_set lock)

RETURNS

Associated ATA device, or NULL if not found.

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