ata_scsi_start_stop_xlat — Translate SCSI START STOP UNIT command
Storage for translated ATA taskfile
Sets up an ATA taskfile to issue STANDBY (to stop) or READ VERIFY (to start). Perhaps these commands should be preceded by CHECK POWER MODE to see what power mode the device is already in. [See SAT revision 5 at www.t10.org]
spin_lock_irqsave(host lock)
Zero on success, non-zero on error.