NAME
ata_xfer_mode2mask - Find matching xfer_mask for XFER_*
SYNOPSIS
unsigned long ata_xfer_mode2mask(u8 xfer_mode);
ARGUMENTS
xfer_mode
XFER_* of interest
DESCRIPTION
Return matching xfer_mask for xfer_mode.
LOCKING: None.
RETURN
Matching xfer_mask, 0 if no match found.
AUTHOR
Jeff Garzik
Author.