Date: Mon, 2 Jan 2012 19:45:30 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r229311 - stable/8/share/man/man4 Message-ID: <201201021945.q02JjUhT083206@svn.freebsd.org>
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Author: mav Date: Mon Jan 2 19:45:30 2012 New Revision: 229311 URL: http://svn.freebsd.org/changeset/base/229311 Log: MFC r228305: Mention that Cold Presence Detection feature used for hot-plug detection when interface power management is enabled. Modified: stable/8/share/man/man4/ahci.4 Directory Properties: stable/8/share/man/man4/ (props changed) Modified: stable/8/share/man/man4/ahci.4 ============================================================================== --- stable/8/share/man/man4/ahci.4 Mon Jan 2 19:44:34 2012 (r229310) +++ stable/8/share/man/man4/ahci.4 Mon Jan 2 19:45:30 2012 (r229311) @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd December 2, 2011 +.Dd December 6, 2011 .Dt AHCI 4 .Os .Sh NAME @@ -91,9 +91,9 @@ Some controllers, such as ICH8, do not i 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.
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