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)
