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ATA_UNPACK_XFERMASK(9) libata Library ATA_UNPACK_XFERMASK(9)

NAME

ata_unpack_xfermask - Unpack xfer_mask into pio, mwdma and udma masks

SYNOPSIS

void ata_unpack_xfermask(unsigned long xfer_mask, unsigned long * pio_mask, unsigned long * mwdma_mask, unsigned long * udma_mask);

ARGUMENTS

unsigned long xfer_mask

xfer_mask to unpack

unsigned long * pio_mask

resulting pio_mask

unsigned long * mwdma_mask

resulting mwdma_mask

unsigned long * udma_mask

resulting udma_mask

DESCRIPTION

Unpack xfer_mask into pio_mask, mwdma_mask and udma_mask. Any NULL destination masks will be ignored.

AUTHOR

Jeff Garzik

Author.

COPYRIGHT

September 2017 Kernel Hackers Manual 4.12