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From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Tue, 31 Aug 2010 00:20:10 +0000 (UTC)
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Subject: svn commit: r212042 - stable/7/share/man/man4
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Author: yongari
Date: Tue Aug 31 00:20:10 2010
New Revision: 212042
URL: http://svn.freebsd.org/changeset/base/212042

Log:
  MFC r211650,211667:
  r211650:
    Document tunable dev.rl.%unit.prefer_iomap
  
  r211667:
    Better wording and fix wrong explanation.
  
    Submitted by:	Ben Kaduk ( minimarmot <> gmail dot com )

Modified:
  stable/7/share/man/man4/rl.4
Directory Properties:
  stable/7/share/man/man4/   (props changed)

Modified: stable/7/share/man/man4/rl.4
==============================================================================
--- stable/7/share/man/man4/rl.4	Tue Aug 31 00:19:03 2010	(r212041)
+++ stable/7/share/man/man4/rl.4	Tue Aug 31 00:20:10 2010	(r212042)
@@ -30,7 +30,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd November 1, 2008
+.Dd August 22, 2010
 .Dt RL 4
 .Os
 .Sh NAME
@@ -203,6 +203,13 @@ SOHO (PRAGMATIC) UE-1211C
 .El
 .Sh LOADER TUNABLES
 .Bl -tag -width indent
+.It Va dev.rl.%unit.prefer_iomap
+This tunable controls which register mapping should be used on the
+specified device.
+A non-zero value enables I/O space register mapping.
+For controllers that have no I/O space register mapping this tunable
+should be set to 0 to use memory space register mapping.
+The default value is 1 to use I/O space register mapping.
 .It Va dev.rl.%unit.twister_enable
 Non-zero value enables the long cable tuning on the specified device.
 Disabled by default.