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.

RETURN
       0 on success, negative errno on failure

AUTHOR
       Jeff Garzik
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                    SATA_DOWN_SPD_LIMIT(9)