Kernel driver `lm75.o' ===================== Status: Complete and well-tested Supported chips: * National Semiconductors LM75 Prefix: `lm75' Addresses scanned: I2C 0x48 - 0x4f (inclusive) Datasheet: Publicly available at the National Semiconductors website Author: Frodo Looijaard Module Parameters ----------------- * force: short array (min = 1, max = 48) List of adapter,address pairs to boldly assume to be present * force_lm75: short array (min = 1, max = 48) List of adapter,address pairs which are unquestionably assumed to contain a `lm75' chip * ignore: short array (min = 1, max = 48) List of adapter,address pairs not to scan * ignore_range: short array (min = 1, max = 48) List of adapter,start-addr,end-addr triples not to scan * probe: short array (min = 1, max = 48) List of adapter,address pairs to scan additionally * probe_range: short array (min = 1, max = 48) List of adapter,start-addr,end-addr triples to scan additionally Description ----------- The LM75 implements one temperature sensor. Limits can be set through the Overtemperature Shutdown register and Hysteris 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 Hysteris value. All temperatures are in degrees Celcius, 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). Chip Features ------------- Chip `lm75' LABEL LABEL CLASS COMPUTE CLASS ACCESS MAGNITUDE temp NONE NONE R 1 temp_hyst temp temp RW 1 temp_over temp temp RW 1 LABEL FEATURE SYMBOL SYSCTL FILE:OFFSET temp SENSORS_LM75_TEMP temp:3 temp_hyst SENSORS_LM75_TEMP_HYST temp:2 temp_over SENSORS_LM75_TEMP_OVER temp:1