path: root/Documentation
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authorJean Delvare <khali@linux-fr.org>2009-12-09 20:35:48 +0100
committerJean Delvare <khali@linux-fr.org>2009-12-09 20:35:48 +0100
commit8918023d40ebb2c086e77368810763975761cb1b (patch)
tree3c4d9eebab32552b0a7d9a896f92897625ab7678 /Documentation
parent591ec6509ed888723caf6ac8ced3f6f718625a1f (diff)
hwmon: (w83627hf) Drop the force_addr module parameter
This module parameter is there to workaround broken BIOS. I'm not even sure if it was used in the past 5 years, and it gets in the way of converting the driver to the MFD infrastructure. So tell the users how they can do the same from user-space. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Rodolfo Giometti <giometti@linux.it>
Diffstat (limited to 'Documentation')
1 files changed, 27 insertions, 2 deletions
diff --git a/Documentation/hwmon/w83627hf b/Documentation/hwmon/w83627hf
index 6ee36dbafd64..44dd2bcc72bd 100644
--- a/Documentation/hwmon/w83627hf
+++ b/Documentation/hwmon/w83627hf
@@ -32,8 +32,6 @@ 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
@@ -70,3 +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.