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

NAME

       ata_qc_issue - issue taskfile to device

SYNOPSIS

       int ata_qc_issue  (struct ata_queued_cmd * qc);

ARGUMENTS

       qc     command to issue to device

DESCRIPTION

       Prepare  an  ATA command to submission to device. This includes mapping
       the data into a DMA-able area, filling in the S/G  table,  and  finally
       writing the taskfile to hardware, starting the command.

LOCKING

       spin_lock_irqsave(host_set lock)

RETURNS

       Zero on success, negative on error.

AUTHOR

       Jeff Garzik.