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Diffstat (limited to 'Documentation/i2c/chips/lm75')
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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. |