[lm-sensors] [PATCH 03/12] adt7473: Fix some bogosity in documentation file.
Darrick J. Wong
djwong at us.ibm.com
Tue Oct 7 03:18:39 CEST 2008
Signed-off-by: Darrick J. Wong <djwong at us.ibm.com>
---
Documentation/hwmon/adt7473 | 30 +++++++++++-------------------
1 files changed, 11 insertions(+), 19 deletions(-)
diff --git a/Documentation/hwmon/adt7473 b/Documentation/hwmon/adt7473
index 2126de3..8bffc41 100644
--- a/Documentation/hwmon/adt7473
+++ b/Documentation/hwmon/adt7473
@@ -14,18 +14,18 @@ Description
This driver implements support for the Analog Devices ADT7473 chip family.
-The LM85 uses the 2-wire interface compatible with the SMBUS 2.0
+The ADT7473 uses the 2-wire interface compatible with the SMBUS 2.0
specification. Using an analog to digital converter it measures three (3)
-temperatures and two (2) voltages. It has three (3) 16-bit counters for
-measuring fan speed. There are three (3) PWM outputs that can be used
-to control fan speed.
+temperatures and two (2) voltages. It has four (4) 16-bit counters for
+measuring fan speed. There are three (3) PWM outputs that can be used to
+control fan speed.
-A sophisticated control system for the PWM outputs is designed into the
-LM85 that allows fan speed to be adjusted automatically based on any of the
-three temperature sensors. Each PWM output is individually adjustable and
+A sophisticated control system for the PWM outputs is designed into the ADT7473
+that allows fan speed to be adjusted automatically based on any of the three
+temperature sensors. Each PWM output is individually adjustable and
programmable. Once configured, the ADT7473 will adjust the PWM outputs in
-response to the measured temperatures without further host intervention.
-This feature can also be disabled for manual control of the PWM's.
+response to the measured temperatures without further host intervention. This
+feature can also be disabled for manual control of the PWM's.
Each of the measured inputs (voltage, temperature, fan speed) has
corresponding high/low limit values. The ADT7473 will signal an ALARM if
@@ -46,14 +46,6 @@ from the raw value to get the temperature value.
The Analog Devices datasheet is very detailed and describes a procedure for
determining an optimal configuration for the automatic PWM control.
-Hardware Configurations
------------------------
-
-The ADT7473 chips have an optional SMBALERT output that can be used to
-signal the chipset in case a limit is exceeded or the temperature sensors
-fail. Individual sensor interrupts can be masked so they won't trigger
-SMBALERT. The SMBALERT output if configured replaces the PWM2 function.
-
Configuration Notes
-------------------
@@ -61,8 +53,8 @@ Besides standard interfaces driver adds the following:
* PWM Control
-* pwm#_auto_point1_pwm and pwm#_auto_point1_temp and
-* pwm#_auto_point2_pwm and pwm#_auto_point2_temp -
+* pwm#_auto_point1_pwm and temp#_auto_point1_temp and
+* pwm#_auto_point2_pwm and temp#_auto_point2_temp -
point1: Set the pwm speed at a lower temperature bound.
point2: Set the pwm speed at a higher temperature bound.
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