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authorMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-04-17 11:46:29 +0200
committerGuenter Roeck <linux@roeck-us.net>2019-04-17 19:37:23 +0200
commit7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7 (patch)
tree9db30159bd32bec125c7d49e80a79bb7c4da0c8e /Documentation/hwmon/lm75
parentdocs: hwmon: convert remaining files to ReST format (diff)
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docs: hwmon: Add an index file and rename docs to *.rst
Now that all files were converted to ReST format, rename them and add an index. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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-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/
-
- * National Semiconductor LM75A
-
- Prefix: 'lm75a'
-
- Addresses scanned: I2C 0x48 - 0x4f
-
- Datasheet: Publicly available at the National Semiconductor website
-
- http://www.national.com/
-
- * Dallas Semiconductor (now Maxim) DS75, DS1775, DS7505
-
- Prefixes: 'ds75', 'ds1775', 'ds7505'
-
- Addresses scanned: none
-
- Datasheet: Publicly available at the Maxim website
-
- http://www.maximintegrated.com/
-
- * Maxim MAX6625, MAX6626, MAX31725, MAX31726
-
- Prefixes: 'max6625', 'max6626', 'max31725', 'max31726'
-
- Addresses scanned: none
-
- Datasheet: Publicly available at the Maxim website
-
- http://www.maxim-ic.com/
-
- * Microchip (TelCom) TCN75
-
- Prefix: 'tcn75'
-
- Addresses scanned: none
-
- Datasheet: Publicly available at the Microchip website
-
- http://www.microchip.com/
-
- * Microchip MCP9800, MCP9801, MCP9802, MCP9803
-
- Prefix: 'mcp980x'
-
- Addresses scanned: none
-
- Datasheet: Publicly available at the Microchip website
-
- http://www.microchip.com/
-
- * Analog Devices ADT75
-
- Prefix: 'adt75'
-
- Addresses scanned: none
-
- Datasheet: Publicly available at the Analog Devices website
-
- http://www.analog.com/adt75
-
- * ST Microelectronics STDS75
-
- Prefix: 'stds75'
-
- Addresses scanned: none
-
- Datasheet: Publicly available at the ST website
-
- http://www.st.com/internet/analog/product/121769.jsp
-
- * ST Microelectronics STLM75
-
- Prefix: 'stlm75'
-
- Addresses scanned: none
-
- Datasheet: Publicly available at the ST website
-
- https://www.st.com/resource/en/datasheet/stlm75.pdf
-
- * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP75C, TMP175, TMP275
-
- Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp75c', 'tmp275'
-
- Addresses scanned: none
-
- Datasheet: Publicly available at the Texas Instruments website
-
- http://www.ti.com/product/tmp100
-
- http://www.ti.com/product/tmp101
-
- http://www.ti.com/product/tmp105
-
- http://www.ti.com/product/tmp112
-
- http://www.ti.com/product/tmp75
-
- http://www.ti.com/product/tmp75c
-
- http://www.ti.com/product/tmp175
-
- http://www.ti.com/product/tmp275
-
- * NXP LM75B
-
- Prefix: 'lm75b'
-
- Addresses scanned: none
-
- Datasheet: Publicly available at the NXP website
-
- http://www.nxp.com/documents/data_sheet/LM75B.pdf
-
-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 driver caches the values for a period varying between 1 second for the
-slowest chips and 125 ms for the fastest chips; reading it more often
-will do no harm, but will return 'old' values.
-
-The original LM75 was typically used in combination with LM78-like chips
-on PC motherboards, to measure the temperature of the processor(s). Clones
-are now used in various embedded designs.
-
-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 clones are not detected by the driver, unless
-they reproduce the exact register tricks of the original LM75, and must
-therefore be instantiated explicitly. Higher resolution up to 16-bit
-is supported by this driver, other specific enhancements are not.
-
-The LM77 is not supported, contrary to what we pretended for a long time.
-Both chips are simply not compatible, value encoding differs.