atapi_check_dma (9) Linux Manual Page
atapi_check_dma – Check whether ATAPI DMA can be supported
Synopsis
int atapi_check_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 lock)
Return
0 when ATAPI DMA can be used nonzero otherwise
Author
Jeff Garzik
- Author.