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

NAME
       ata_check_atapi_dma - Check whether ATAPI DMA can be supported


SYNOPSIS
       int ata_check_atapi_dma  (struct ata_queued_cmd * qc);


ARGUMENTS
       qc     Metadata associated with taskfile to check


DESCRIPTION
       Allow  low-level  driver  to  filter  ATA  PACKET commands, returning a
       status indicating whether or not it is OK to use DMA for  the  supplied
       PACKET command.


LOCKING
       spin_lock_irqsave(host_set lock)


RETURNS
       0 when ATAPI DMA can be used nonzero otherwise


AUTHOR
       Jeff Garzik.