| 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¶
| May 2024 | Kernel Hackers Manual 2.6. |