ata_link_offline(9) centos man page | unix.com

ATA_LINK_OFFLINE(9)						  libata Library					       ATA_LINK_OFFLINE(9)

NAME
       ata_link_offline - test whether the given link is offline

SYNOPSIS
       bool ata_link_offline(struct ata_link * link);

ARGUMENTS
       link
	   ATA link to test

DESCRIPTION
       Test whether link is offline. This is identical to ata_phys_link_offline when there's no slave link. When there's a slave link, this
       function should only be called on the master link and will return true if both M/S links are offline.

LOCKING
       None.

RETURNS
       True if the port offline status is available and offline.

AUTHOR
       Jeff Garzik
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						       ATA_LINK_OFFLINE(9)