SATA_DOWN_SPD_LIMIT(9) libata Core Internals SATA_DOWN_SPD_LIMIT(9)
NAME
sata_down_spd_limit - adjust SATA spd limit downward
SYNOPSIS
int sata_down_spd_limit(struct ata_link * link, u32 spd_limit);
ARGUMENTS
link
Link to adjust SATA spd limit for
spd_limit
Additional limit
DESCRIPTION
Adjust SATA spd limit of link downward. Note that this function only adjusts the limit. The change must be applied using sata_set_spd.
If spd_limit is non-zero, the speed is limited to equal to or lower than spd_limit if such speed is supported. If spd_limit is slower than
any supported speed, only the lowest supported speed is allowed.
LOCKING
Inherited from caller.
RETURNS
0 on success, negative errno on failure
AUTHOR
Jeff Garzik
Author.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SATA_DOWN_SPD_LIMIT(9)
