ata_xfer_mask2mode(9) centos man page | unix.com

ATA_XFER_MASK2MODE(9)						  libata Library					     ATA_XFER_MASK2MODE(9)

NAME
       ata_xfer_mask2mode - Find matching XFER_* for the given xfer_mask

SYNOPSIS
       u8 ata_xfer_mask2mode(unsigned long xfer_mask);

ARGUMENTS
       xfer_mask
	   xfer_mask of interest

DESCRIPTION
       Return matching XFER_* value for xfer_mask. Only the highest bit of xfer_mask is considered.

LOCKING
       None.

RETURNS
       Matching XFER_* value, 0xff if no match found.

AUTHOR
       Jeff Garzik
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						     ATA_XFER_MASK2MODE(9)