summaryrefslogtreecommitdiffstats
path: root/Documentation/i2c/chips/lm75
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/i2c/chips/lm75')
-rw-r--r--Documentation/i2c/chips/lm7565
1 files changed, 0 insertions, 65 deletions
diff --git a/Documentation/i2c/chips/lm75 b/Documentation/i2c/chips/lm75
deleted file mode 100644
index 8e6356f..0000000
--- a/Documentation/i2c/chips/lm75
+++ /dev/null
@@ -1,65 +0,0 @@
-Kernel driver lm75
-==================
-
-Supported chips:
- * National Semiconductor LM75
- Prefix: 'lm75'
- Addresses scanned: I2C 0x48 - 0x4f
- Datasheet: Publicly available at the National Semiconductor website
- http://www.national.com/
- * Dallas Semiconductor DS75
- Prefix: 'lm75'
- Addresses scanned: I2C 0x48 - 0x4f
- Datasheet: Publicly available at the Dallas Semiconductor website
- http://www.maxim-ic.com/
- * Dallas Semiconductor DS1775
- Prefix: 'lm75'
- Addresses scanned: I2C 0x48 - 0x4f
- Datasheet: Publicly available at the Dallas Semiconductor website
- http://www.maxim-ic.com/
- * Maxim MAX6625, MAX6626
- Prefix: 'lm75'
- Addresses scanned: I2C 0x48 - 0x4b
- Datasheet: Publicly available at the Maxim website
- http://www.maxim-ic.com/
- * Microchip (TelCom) TCN75
- Prefix: 'lm75'
- Addresses scanned: I2C 0x48 - 0x4f
- Datasheet: Publicly available at the Microchip website
- http://www.microchip.com/
-
-Author: Frodo Looijaard <frodol@dds.nl>
-
-Description
------------
-
-The LM75 implements one temperature sensor. Limits can be set through the
-Overtemperature Shutdown register and Hysteresis register. Each value can be
-set and read to half-degree accuracy.
-An alarm is issued (usually to a connected LM78) when the temperature
-gets higher then the Overtemperature Shutdown value; it stays on until
-the temperature falls below the Hysteresis value.
-All temperatures are in degrees Celsius, and are guaranteed within a
-range of -55 to +125 degrees.
-
-The LM75 only updates its values each 1.5 seconds; reading it more often
-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 DS75, DS1775, MAX6625, and MAX6626 are supported as well.
-They are not distinguished from an LM75. While most of these chips
-have three additional bits of accuracy (12 vs. 9 for the LM75),
-the additional bits are not supported. Not only that, but these chips will
-not be detected if not in 9-bit precision mode (use the force parameter if
-needed).
-
-The TCN75 is supported as well, and is not distinguished from an LM75.
-
-The LM75 is essentially an industry standard; there may be other
-LM75 clones not listed here, with or without various enhancements,
-that are supported.
-
-The LM77 is not supported, contrary to what we pretended for a long time.
-Both chips are simply not compatible, value encoding differs.
OpenPOWER on IntegriCloud