suse man page for ata_dev_phys_link

ATA_DEV_PHYS_LINK(9)					       libata Core Internals					      ATA_DEV_PHYS_LINK(9)

NAME
       ata_dev_phys_link - find physical link for a device

SYNOPSIS
       struct ata_link * ata_dev_phys_link(struct ata_device * dev);

ARGUMENTS
       dev
	   ATA device to look up physical link for

DESCRIPTION
       Look up physical link which dev is attached to. Note that this is different from dev->link only when dev is on slave link. For all other
       cases, it's the same as dev->link.

LOCKING
       Don't care.

RETURNS
       Pointer to the found physical link.

AUTHOR
       Jeff Garzik
	   Author.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						      ATA_DEV_PHYS_LINK(9)