ata_unpack_xfermask — Unpack xfer_mask into pio, mwdma and udma masks
void ata_unpack_xfermask
(unsigned int xfer_mask, unsigned int * pio_mask, unsigned int * mwdma_mask, unsigned int * udma_mask);
xfer_mask to unpack
resulting pio_mask
resulting mwdma_mask
resulting udma_mask
Unpack xfer_mask into pio_mask, mwdma_mask and udma_mask. Any NULL distination masks will be ignored.