diff options
-rw-r--r-- | share/man/man4/rl.4 | 9 |
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. |