ata_check_atapi_dma(9)
NAME
- ata_check_atapi_dma - Check whether ATAPI DMA can be sup
- ported
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, re
- turning 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
- Author.