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1Kernel driver lm752==================3 4Supported chips:5 6 * National Semiconductor LM757 8 Prefix: 'lm75'9 10 Addresses scanned: I2C 0x48 - 0x4f11 12 Datasheet: Publicly available at the National Semiconductor website13 14 http://www.national.com/15 16 * National Semiconductor LM75A17 18 Prefix: 'lm75a'19 20 Addresses scanned: I2C 0x48 - 0x4f21 22 Datasheet: Publicly available at the National Semiconductor website23 24 http://www.national.com/25 26 * Dallas Semiconductor (now Maxim) DS75, DS1775, DS750527 28 Prefixes: 'ds75', 'ds1775', 'ds7505'29 30 Addresses scanned: none31 32 Datasheet: Publicly available at the Maxim website33 34 https://www.maximintegrated.com/35 36 * Maxim MAX6625, MAX6626, MAX31725, MAX3172637 38 Prefixes: 'max6625', 'max6626', 'max31725', 'max31726'39 40 Addresses scanned: none41 42 Datasheet: Publicly available at the Maxim website43 44 http://www.maxim-ic.com/45 46 * Microchip (TelCom) TCN7547 48 Prefix: 'tcn75'49 50 Addresses scanned: none51 52 Datasheet: Publicly available at the Microchip website53 54 http://www.microchip.com/55 56 * Microchip MCP9800, MCP9801, MCP9802, MCP980357 58 Prefix: 'mcp980x'59 60 Addresses scanned: none61 62 Datasheet: Publicly available at the Microchip website63 64 http://www.microchip.com/65 66 * Analog Devices ADT7567 68 Prefix: 'adt75'69 70 Addresses scanned: none71 72 Datasheet: Publicly available at the Analog Devices website73 74 https://www.analog.com/adt7575 76 * ST Microelectronics STDS7577 78 Prefix: 'stds75'79 80 Addresses scanned: none81 82 Datasheet: Publicly available at the ST website83 84 http://www.st.com/internet/analog/product/121769.jsp85 86 * ST Microelectronics STLM7587 88 Prefix: 'stlm75'89 90 Addresses scanned: none91 92 Datasheet: Publicly available at the ST website93 94 https://www.st.com/resource/en/datasheet/stlm75.pdf95 96 * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP75B, TMP75C, TMP175, TMP275, TMP107597 98 Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp75b', 'tmp75c', 'tmp275', 'tmp1075'99 100 Addresses scanned: none101 102 Datasheet: Publicly available at the Texas Instruments website103 104 https://www.ti.com/product/tmp100105 106 https://www.ti.com/product/tmp101107 108 https://www.ti.com/product/tmp105109 110 https://www.ti.com/product/tmp112111 112 https://www.ti.com/product/tmp75113 114 https://www.ti.com/product/tmp75b115 116 https://www.ti.com/product/tmp75c117 118 https://www.ti.com/product/tmp175119 120 https://www.ti.com/product/tmp275121 122 https://www.ti.com/product/TMP1075123 124 * NXP LM75B, PCT2075125 126 Prefix: 'lm75b', 'pct2075'127 128 Addresses scanned: none129 130 Datasheet: Publicly available at the NXP website131 132 https://www.nxp.com/documents/data_sheet/LM75B.pdf133 134 https://www.nxp.com/docs/en/data-sheet/PCT2075.pdf135 136 * AMS OSRAM AS6200137 138 Prefix: 'as6200'139 140 Addresses scanned: none141 142 Datasheet: Publicly available at the AMS website143 144 https://ams.com/documents/20143/36005/AS6200_DS000449_4-00.pdf145 146Author: Frodo Looijaard <frodol@dds.nl>147 148Description149-----------150 151The LM75 implements one temperature sensor. Limits can be set through the152Overtemperature Shutdown register and Hysteresis register. Each value can be153set and read to half-degree accuracy.154An alarm is issued (usually to a connected LM78) when the temperature155gets higher then the Overtemperature Shutdown value; it stays on until156the temperature falls below the Hysteresis value.157All temperatures are in degrees Celsius, and are guaranteed within a158range of -55 to +125 degrees.159 160The driver caches the values for a period varying between 1 second for the161slowest chips and 125 ms for the fastest chips; reading it more often162will do no harm, but will return 'old' values.163 164The original LM75 was typically used in combination with LM78-like chips165on PC motherboards, to measure the temperature of the processor(s). Clones166are now used in various embedded designs.167 168The LM75 is essentially an industry standard; there may be other169LM75 clones not listed here, with or without various enhancements,170that are supported. The clones are not detected by the driver, unless171they reproduce the exact register tricks of the original LM75, and must172therefore be instantiated explicitly. Higher resolution up to 16-bit173is supported by this driver, other specific enhancements are not.174 175The LM77 is not supported, contrary to what we pretended for a long time.176Both chips are simply not compatible, value encoding differs.177