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The LM77 is not compatible with the LM75.

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2625 7894878c-1315-0410-8ee3-d5d059ff63e0
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Jean Delvare committed 2004-07-03 07:17:52 +00:00
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commit 30d9c4ec79
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+8 -16
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README
+1 -1
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@@ -95,7 +95,7 @@ At least the following hardware sensor chips are supported:
MAX6633, MAX6634, MAX6635
Microchip TC1068, TCM1617, TCN75
Myson MTP008
National Semiconductor LM75, LM76, LM77, LM78, LM78-J, LM79,
National Semiconductor LM75, LM76, LM78, LM78-J, LM79,
LM80, LM81, LM83, LM84, LM85, LM87,
LM89, LM90, LM92, LM99, PC87360,
PC87363, PC87364, PC87365, PC87366
TODO
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@@ -94,8 +94,6 @@ KERNEL MODULES
something completely different from the description at page 25.
* gl518sm: Assume that new values are close to old values, so start with
trying to use a small range near the old values (already partially done)
* lm77: Add detection in lm75.c and sensors-detect to distinguish from
an lm75. Add support for the two new registers.
* Add MTP006F chip: http://www.myson.com/Pcd/MTP006/Mtp006.pdf
gfiala@s.netic.de (Guido Fiala) has one on his mainboard
doc/chips/SUMMARY
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@@ -116,7 +116,6 @@ lm75
ds75 1 - - - yes no
ds1775 1 - - - yes no
tcn75 1 - - - yes no
lm77 1 - - - yes no
lm78
lm78 1 7 3 - yes yes
doc/chips/lm75
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@@ -9,11 +9,6 @@ Supported chips:
Addresses scanned: I2C 0x48 - 0x4f (inclusive)
Datasheet: Publicly available at the National Semiconductor website
http://www.national.com
* National Semiconductor LM77
Prefix: `lm75'
Addresses scanned: I2C 0x48 - 0x4b (inclusive)
Datasheet: Publicly available at the National Semiconductor website
http://www.national.com
* Dallas Semiconductor DS75
Prefix: `lm75'
Addresses scanned: I2C 0x48 - 0x4f (inclusive)
@@ -69,10 +64,6 @@ will do no harm, but will return 'old' values.
The LM75 is usually used in combination with LM78-like chips, to measure
the temperature of the processor(s).
The LM77 is supported as well. It is not distinguished from an LM75
and the two additional registers in the LM77 are not supported.
The prefix in the /proc directory is still 'lm75'.
The DS75 and DS1775 are supported as well.
They are not distinguished from an LM75. While these chips
have three additional bits of accuracy (12 vs. 9 for the LM75),
@@ -81,6 +72,10 @@ The prefix in the /proc directory is still 'lm75'.
The TCN75 is supported as well, and is not distinguished from an LM75.
The LM77 is not supported, contrary to what we pretended for a long time.
Both chips are simply not compatible, value encoding differs.
Chip Features
-------------
mkpatch/mkpatch.pl
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@@ -424,9 +424,9 @@ CONFIG_SENSORS_MTP008
National Semiconductor LM75 and compatibles
CONFIG_SENSORS_LM75
If you say yes here you get support for National Semiconductor LM75
sensor chips and clones: Dallas Semi DS75 and DS1775, TelCon
TCN75, and National Semi LM77. This can also be built as a module which
can be inserted and removed while the kernel is running.
sensor chips and clones: Dallas Semi DS75 and DS1775, and TelCon
TCN75. This can also be built as a module which can be inserted and
removed while the kernel is running.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at