ata_scsi_qc_new (9) - Linux Man Pages

ata_scsi_qc_new: acquire new ata_queued_cmd reference

NAME

ata_scsi_qc_new - acquire new ata_queued_cmd reference

SYNOPSIS

struct ata_queued_cmd * ata_scsi_qc_new(struct ata_device dev, struct scsi_cmnd cmd);

ARGUMENTS

dev

ATA device to which the new command is attached

cmd

SCSI command that originated this ATA command

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 lock)

RETURN

Command allocated, or NULL if none available.

AUTHOR

Jeff Garzik

Author.

COPYRIGHT