ata_dev_enable_pm(9) suse man page | unix.com

ATA_DEV_ENABLE_PM(9)					       libata Core Internals					      ATA_DEV_ENABLE_PM(9)

NAME
       ata_dev_enable_pm - enable SATA interface power management

SYNOPSIS
       void ata_dev_enable_pm(struct ata_device * dev, enum link_pm policy);

ARGUMENTS
       dev
	   device to enable power management

       policy
	   the link power management policy

DESCRIPTION
       Enable SATA Interface power management. This will enable Device Interface Power Management (DIPM) for min_power policy, and then call
       driver specific callbacks for enabling Host Initiated Power management.

LOCKING
       Caller.

RETURNS
       -EINVAL if IPM is not supported, 0 otherwise.

AUTHOR
       Jeff Garzik
	   Author.

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