Linux Kernel Markers: document format string

[pandora-kernel.git] / Documentation / thinkpad-acpi.txt

diff --git a/Documentation/thinkpad-acpi.txt b/Documentation/thinkpad-acpi.txt
index 60953d6..ec49926 100644 (file)
--- a/Documentation/thinkpad-acpi.txt
+++ b/Documentation/thinkpad-acpi.txt
@@ -105,10 +105,15 @@ The version of thinkpad-acpi's sysfs interface is exported by the driver
 as a driver attribute (see below).
 
 Sysfs driver attributes are on the driver's sysfs attribute space,
-for 2.6.20 this is /sys/bus/platform/drivers/thinkpad_acpi/.
+for 2.6.23 this is /sys/bus/platform/drivers/thinkpad_acpi/ and
+/sys/bus/platform/drivers/thinkpad_hwmon/
 
-Sysfs device attributes are on the driver's sysfs attribute space,
-for 2.6.20 this is /sys/devices/platform/thinkpad_acpi/.
+Sysfs device attributes are on the thinkpad_acpi device sysfs attribute
+space, for 2.6.23 this is /sys/devices/platform/thinkpad_acpi/.
+
+Sysfs device attributes for the sensors and fan are on the
+thinkpad_hwmon device's sysfs attribute space, but you should locate it
+looking for a hwmon device with the name attribute of "thinkpad".
 
 Driver version
 --------------
@@ -766,7 +771,7 @@ Temperature sensors
 -------------------
 
 procfs: /proc/acpi/ibm/thermal
-sysfs device attributes: (hwmon) temp*_input
+sysfs device attributes: (hwmon "thinkpad") temp*_input
 
 Most ThinkPads include six or more separate temperature sensors but only
 expose the CPU temperature through the standard ACPI methods.  This
@@ -989,7 +994,9 @@ Fan control and monitoring: fan speed, fan enable/disable
 ---------------------------------------------------------
 
 procfs: /proc/acpi/ibm/fan
-sysfs device attributes: (hwmon) fan_input, pwm1, pwm1_enable
+sysfs device attributes: (hwmon "thinkpad") fan1_input, pwm1,
+                         pwm1_enable
+sysfs hwmon driver attributes: fan_watchdog
 
 NOTE NOTE NOTE: fan control operations are disabled by default for
 safety reasons.  To enable them, the module parameter "fan_control=1"
@@ -1028,7 +1035,7 @@ enable it if necessary to avoid overheating.
 
 An enabled fan in level "auto" may stop spinning if the EC decides the
 ThinkPad is cool enough and doesn't need the extra airflow.  This is
-normal, and the EC will spin the fan up if the varios thermal readings
+normal, and the EC will spin the fan up if the various thermal readings
 rise too much.
 
 On the X40, this seems to depend on the CPU and HDD temperatures.
@@ -1131,7 +1138,7 @@ hwmon device attribute fan1_input:
        which can take up to two minutes.  May return rubbish on older
        ThinkPads.
 
-driver attribute fan_watchdog:
+hwmon driver attribute fan_watchdog:
        Fan safety watchdog timer interval, in seconds.  Minimum is
        1 second, maximum is 120 seconds.  0 disables the watchdog.
 
@@ -1196,7 +1203,7 @@ for example:
 Enabling debugging output
 -------------------------
 
-The module takes a debug paramater which can be used to selectively
+The module takes a debug parameter which can be used to selectively
 enable various classes of debugging output, for example:
 
         modprobe ibm_acpi debug=0xffff
@@ -1233,3 +1240,9 @@ Sysfs interface changelog:
                layer, the radio switch generates input event EV_RADIO,
                and the driver enables hot key handling by default in
                the firmware.
+
+0x020000:      ABI fix: added a separate hwmon platform device and
+               driver, which must be located by name (thinkpad)
+               and the hwmon class for libsensors4 (lm-sensors 3)
+               compatibility.  Moved all hwmon attributes to this
+               new platform device.