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ATA_SCSI_QUEUECMD(9)	libata SCSI translation/emulat	  ATA_SCSI_QUEUECMD(9)

NAME
       ata_scsi_queuecmd - Issue SCSI cdb to libata-managed device

SYNOPSIS
       int ata_scsi_queuecmd(struct scsi_cmnd * cmd,
			     void (*done) (struct scsi_cmnd *));

ARGUMENTS
       cmd
	   SCSI command to be sent

       done
	   Completion function, called when command is complete

DESCRIPTION
       In some cases, this function translates SCSI commands into ATA
       taskfiles, and queues the taskfiles to be sent to hardware. In other
       cases, this function simulates a SCSI device by evaluating and
       responding to certain SCSI commands. This creates the overall effect of
       ATA and ATAPI devices appearing as SCSI devices.

LOCKING
       Releases scsi-layer-held lock, and obtains host lock.

RETURNS
       Return value from __ata_scsi_queuecmd if cmd can be queued, 0
       otherwise.

AUTHOR
       Jeff Garzik
	   Author.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013		  ATA_SCSI_QUEUECMD(9)

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