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From: Marius Strobl <marius@FreeBSD.org>
Date: Mon, 18 Jun 2012 19:14:07 +0000 (UTC)
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Subject: svn commit: r237235 - head/share/man/man4
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Author: marius
Date: Mon Jun 18 19:14:06 2012
New Revision: 237235
URL: http://svn.freebsd.org/changeset/base/237235

Log:
  Document the hw.ahci.force tunable here, too, as it's also used by
  ataahci(4) and atanvidia(4).
  
  MFC after:	3 days

Modified:
  head/share/man/man4/ata.4

Modified: head/share/man/man4/ata.4
==============================================================================
--- head/share/man/man4/ata.4	Mon Jun 18 19:11:07 2012	(r237234)
+++ head/share/man/man4/ata.4	Mon Jun 18 19:14:06 2012	(r237235)
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 17, 2011
+.Dd June 18, 2012
 .Dt ATA 4
 .Os
 .Sh NAME
@@ -89,8 +89,12 @@ subsystem module.
 The following tunables are settable from the
 .Xr loader 8 :
 .Bl -ohang
+.It Va hw.ahci.force
+set to nonzero value for forcing drivers to attach to some known AHCI-capable
+chips even if they are configured for legacy IDE emulation (the default is 1,
+force the attach).
 .It Va hw.ata.ata_dma_check_80pin
-set to 0 to disable the 80pin cable check (the default is 1, check the cable)
+set to 0 to disable the 80pin cable check (the default is 1, check the cable).
 .It Va hint.atapci.X.msi
 set to 1 to allow Message Signalled Interrupts (MSI) to be used by the
 specified PCI ATA controller, if supported.