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authormarkus <markus@FreeBSD.org>2006-01-14 00:39:26 +0000
committermarkus <markus@FreeBSD.org>2006-01-14 00:39:26 +0000
commit71416ddf7e43e9e0af37d308613b9f0393aa14f1 (patch)
treeb055350cb1ce0159320300221a51a7acd0ee01b4 /share
parent06fd19004c87f0fc8a5a5e907422e6a1dba84b10 (diff)
downloadFreeBSD-src-71416ddf7e43e9e0af37d308613b9f0393aa14f1.zip
FreeBSD-src-71416ddf7e43e9e0af37d308613b9f0393aa14f1.tar.gz
- Document the latest changes for controlling the fan
- s/Thinklight/ThinkLight/ in two cases Approved by: brueffer MFC after: 1 week
Diffstat (limited to 'share')
-rw-r--r--share/man/man4/man4.i386/acpi_ibm.428
1 files changed, 24 insertions, 4 deletions
diff --git a/share/man/man4/man4.i386/acpi_ibm.4 b/share/man/man4/man4.i386/acpi_ibm.4
index a841bb4..09455a7 100644
--- a/share/man/man4/man4.i386/acpi_ibm.4
+++ b/share/man/man4/man4.i386/acpi_ibm.4
@@ -137,7 +137,7 @@ The
.Nm
driver provides a
.Xr led 4
-interface for the Thinklight.
+interface for the ThinkLight.
The Thinklight can be made to blink by writing
.Tn ASCII
strings to the
@@ -269,8 +269,28 @@ Toggle Bluetooth chip activity.
(read-only)
Indicates whether the WLAN chip is active or not.
.It Va dev.acpi_ibm.0.fan
-(read-only)
-Indicates whether the fan is on or off.
+Indicates whether the fan is in automatic (1) or manual (0) mode.
+Default is automatic mode.
+This sysctl should be used with extreme precaution, since disabling automatic
+fan control might overheat the ThinkPad and lead to permanent damage if the
+.Va fan_level
+is not set accordingly.
+.It Va dev.acpi_ibm.0.fan_level
+Indicates at what speed the fan should run when being in manual mode.
+Values are ranging from 0 (off) to 7 (max).
+The resulting speed differs from model to model.
+On a T41p this is as follows:
+.Pp
+.Bl -tag -width indent-two -compact
+.It Li 0
+off
+.It Li 1, 2
+~3000 RPM
+.It Li 3, 4, 5
+~3600 RPM
+.It Li 6, 7
+~4300 RPM
+.El
.It Va dev.acpi_ibm.0.fan_speed
(read-only)
Fan speed in rounds per minute.
@@ -310,7 +330,7 @@ Defaults for these sysctls can be set in
.Sh FILES
.Bl -tag -width ".Pa /dev/led/thinklight"
.It Pa /dev/led/thinklight
-Thinklight
+ThinkLight
.Xr led 4
device node
.El
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