document the keyboard backlight support

1 files changed, 9 insertions, 6 deletions

diff --git a/share/man/man4/asmc.4 b/share/man/man4/asmc.4
index 08f7bfed0d1..c6c8df20372 100644
--- a/share/man/man4/asmc.4
+++ b/share/man/man4/asmc.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: asmc.4,v 1.2 2015/09/30 15:56:35 jmc Exp $
+.\"	$OpenBSD: asmc.4,v 1.3 2015/12/12 12:43:54 jung Exp $
 .\"
 .\" Copyright (c) 2015 Joerg Jung <jung@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: September 30 2015 $
+.Dd $Mdocdate: December 12 2015 $
 .Dt ASMC 4
 .Os
 .Sh NAME
@@ -33,12 +33,17 @@ sensor values which are made available through the
 .Xr sysctl 8
 interface.
 .Pp
-If available, the keyboard backlight is enabled by the driver.
+If available, the keyboard backlight is enabled by the driver and can be
+adjusted using the
+.Xr wsconsctl 8
+variable
+.Va keyboard.backlight .
 .Sh SEE ALSO
 .Xr intro 4 ,
 .Xr isa 4 ,
 .Xr sensorsd 8 ,
-.Xr sysctl 8
+.Xr sysctl 8 ,
+.Xr wsconsctl 8
 .Sh HISTORY
 The
 .Nm
@@ -56,7 +61,5 @@ Light sensor values may not be available on older products.
 Acceleration sensors are not available and the associated interrupt handling is
 not implemented.
 .Pp
-Changing the keyboard backlight value is not implemented.
-.Pp
 Besides the sensors, the huge amount of other functions and information
 available from the SMC is not supported.