[PATCH] I2C: documentation update 2/3
This patch adds missing documentation for system health monitoring chips.
I would like to thank all people, who helped me with this project.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/Documentation/i2c/chips/smsc47b397 b/Documentation/i2c/chips/smsc47b397
index 4737bb6..da9d80c 100644
--- a/Documentation/i2c/chips/smsc47b397
+++ b/Documentation/i2c/chips/smsc47b397
@@ -1,7 +1,19 @@
+Kernel driver smsc47b397
+========================
+
+Supported chips:
+ * SMSC LPC47B397-NC
+ Prefix: 'smsc47b397'
+ Addresses scanned: none, address read from Super I/O config space
+ Datasheet: In this file
+
+Authors: Mark M. Hoffman <mhoffman@lightlink.com>
+ Utilitek Systems, Inc.
+
November 23, 2004
The following specification describes the SMSC LPC47B397-NC sensor chip
-(for which there is no public datasheet available). This document was
+(for which there is no public datasheet available). This document was
provided by Craig Kelly (In-Store Broadcast Network) and edited/corrected
by Mark M. Hoffman <mhoffman@lightlink.com>.
@@ -10,10 +22,10 @@
Methods for detecting the HP SIO and reading the thermal data on a dc7100.
The thermal information on the dc7100 is contained in the SIO Hardware Monitor
-(HWM). The information is accessed through an index/data pair. The index/data
-pair is located at the HWM Base Address + 0 and the HWM Base Address + 1. The
+(HWM). The information is accessed through an index/data pair. The index/data
+pair is located at the HWM Base Address + 0 and the HWM Base Address + 1. The
HWM Base address can be obtained from Logical Device 8, registers 0x60 (MSB)
-and 0x61 (LSB). Currently we are using 0x480 for the HWM Base Address and
+and 0x61 (LSB). Currently we are using 0x480 for the HWM Base Address and
0x480 and 0x481 for the index/data pair.
Reading temperature information.
@@ -50,7 +62,7 @@
The LSB Must be read first.
How to convert the tach reading to RPM.
-The tach reading (TCount) is given by: (Tach MSB * 256) + (Tach LSB)
+The tach reading (TCount) is given by: (Tach MSB * 256) + (Tach LSB)
The SIO counts the number of 90kHz (11.111us) pulses per revolution.
RPM = 60/(TCount * 11.111us)