1. NAME▲

atapi_check_dma - Check whether ATAPI DMA can be supported

2. SYNOPSIS ▲

int atapi_check_dma(struct ata_queued_cmd *  qc );

3. ARGUMENTS ▲

qc
    Metadata associated with taskfile to check

4. 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.

5. LOCKING ▲

spin_lock_irqsave(host lock)

6. RETURNS ▲

0 when ATAPI DMA can be used nonzero otherwise

7. AUTHOR ▲

Jeff Garzik
    Author.

8. COPYRIGHT ▲