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
- xfer_mask
- 
     xfer_mask to unpack
     
- pio_mask
- 
     resulting pio_mask
     
- mwdma_mask
- 
     resulting mwdma_mask
     
- udma_mask
- 
     resulting udma_mask
     
Description
   Unpack xfer_mask into pio_mask, mwdma_mask and udma_mask.
   Any NULL distination masks will be ignored.