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| author | mav <mav@FreeBSD.org> | 2011-12-06 09:12:11 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2011-12-06 09:12:11 +0000 |
| commit | f8f306b32a4ee9cf17446f1997817dafecceb424 (patch) | |
| tree | 0e006ad638025306540ebdc0f0a6bedc49c692f0 /share/man | |
| parent | e67c905b19068e6088d547fdfa0695b7a5b23e9b (diff) | |
| download | FreeBSD-src-f8f306b32a4ee9cf17446f1997817dafecceb424.zip FreeBSD-src-f8f306b32a4ee9cf17446f1997817dafecceb424.tar.gz | |
Mention that Cold Presence Detection feature used for hot-plug detection
when interface power management is enabled.
Diffstat (limited to 'share/man')
| -rw-r--r-- | share/man/man4/ahci.4 | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/share/man/man4/ahci.4 b/share/man/man4/ahci.4 index 08e9013..29abd8c 100644 --- a/share/man/man4/ahci.4 +++ b/share/man/man4/ahci.4 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd December 2, 2011 +.Dd December 6, 2011 .Dt AHCI 4 .Os .Sh NAME @@ -90,9 +90,9 @@ Some controllers, such as ICH8, do not implement modes 2 and 3 with NCQ used. Because of artificial entering latency, performance degradation in modes 4 and 5 is much smaller then in modes 2 and 3. .Pp -Note that interface Power Management is not compatible with -device presence detection. -A manual bus reset is needed on device hot-plug. +Note that interface Power Management complicates device presence detection. +A manual bus reset/rescan may be needed after device hot-plug, unless hardware +implements Cold Presence Detection. .It Va hint.ahcich. Ns Ar X Ns Va .sata_rev setting to nonzero value limits maximum SATA revision (speed). Values 1, 2 and 3 are respectively 1.5, 3 and 6Gbps. |
