Input: elantech - ignore high bits in the position coordinates

[safe/jmp/linux-2.6] / Documentation / hwmon / w83627hf

diff --git a/Documentation/hwmon/w83627hf b/Documentation/hwmon/w83627hf
index 880a59f..44dd2bc 100644 (file)
--- a/Documentation/hwmon/w83627hf
+++ b/Documentation/hwmon/w83627hf
@@ -32,18 +32,12 @@ Authors:
 Module Parameters
 -----------------
 
-* force_addr: int
-  Initialize the ISA address of the sensors
 * force_i2c: int
   Initialize the I2C address of the sensors
 * init: int
   (default is 1)
   Use 'init=0' to bypass initializing the chip.
   Try this if your computer crashes when you load the module.
-* reset: int
-  (default is 0)
-  The driver used to reset the chip on load, but does no more. Use
-  'reset=1' to restore the old behavior. Report if you need to do this.
 
 Description
 -----------
@@ -74,3 +68,30 @@ doesn't help, you may just ignore the bogus VID reading with no harm done.
 For further information on this driver see the w83781d driver documentation.
 
 [1] http://www.lm-sensors.org/browser/lm-sensors/trunk/doc/vid
+
+Forcing the address
+-------------------
+
+The driver used to have a module parameter named force_addr, which could
+be used to force the base I/O address of the hardware monitoring block.
+This was meant as a workaround for mainboards with a broken BIOS. This
+module parameter is gone for technical reasons. If you need this feature,
+you can obtain the same result by using the isaset tool (part of
+lm-sensors) before loading the driver:
+
+# Enter the Super I/O config space
+isaset -y -f 0x2e 0x87
+isaset -y -f 0x2e 0x87
+
+# Select the hwmon logical device
+isaset -y 0x2e 0x2f 0x07 0x0b
+
+# Set the base I/O address (to 0x290 in this example)
+isaset -y 0x2e 0x2f 0x60 0x02
+isaset -y 0x2e 0x2f 0x61 0x90
+
+# Exit the Super-I/O config space
+isaset -y -f 0x2e 0xaa
+
+The above sequence assumes a Super-I/O config space at 0x2e/0x2f, but
+0x4e/0x4f is also possible.