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authoryongari <yongari@FreeBSD.org>2010-08-22 21:32:48 +0000
committeryongari <yongari@FreeBSD.org>2010-08-22 21:32:48 +0000
commitd13691c661ad045304292f5f10aecbca2997901e (patch)
tree2f7abb55bb47219ab32f74e1f820e9d252950182
parent51ae556c0997c7e6a56b5cbfac42c31fbfbdaaff (diff)
downloadFreeBSD-src-d13691c661ad045304292f5f10aecbca2997901e.zip
FreeBSD-src-d13691c661ad045304292f5f10aecbca2997901e.tar.gz
Document tunable dev.rl.%unit.prefer_iomap
-rw-r--r--share/man/man4/rl.49
1 files changed, 8 insertions, 1 deletions
diff --git a/share/man/man4/rl.4 b/share/man/man4/rl.4
index 1897b08..56c57be 100644
--- a/share/man/man4/rl.4
+++ b/share/man/man4/rl.4
@@ -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.
+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 I/O 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.
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