atapi_check_dma (9) - Linux Manuals

atapi_check_dma: Check whether ATAPI DMA can be supported

Command to display atapi_check_dma manual in Linux: $ man 9 atapi_check_dma

NAME

atapi_check_dma - Check whether ATAPI DMA can be supported

SYNOPSIS

int atapi_check_dma(struct ata_queued_cmd * qc);

ARGUMENTS

: 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.