Provided by: linux-doc-2.6.15_2.6.15-23.39_all bug

NAME
       ata_scsi_qc_new - acquire new ata_queued_cmd reference


SYNOPSIS
       struct ata_queued_cmd * ata_scsi_qc_new  (struct ata_port * ap,
                                                    struct ata_device * dev,
                                                    struct scsi_cmnd * cmd,
                                                    void (*done) <funcparams>struct scsi_cmnd *</funcparams>);


ARGUMENTS
       ap     ATA port to which the new command is attached

       dev    ATA device to which the new command is attached

       cmd    SCSI command that originated this ATA command

       done   SCSI command completion function


DESCRIPTION
       Obtain  a reference to an unused ata_queued_cmd structure, which is the
       basic libata structure representing a single ATA command  sent  to  the
       hardware.

       If  a  command was available, fill in the SCSI-specific portions of the
       structure with information on the current command.


LOCKING
       spin_lock_irqsave(host_set lock)


RETURNS
       Command allocated, or NULL if none available.


AUTHOR
       Jeff Garzik.