Kernel driver max34440 ====================== Supported chips: * Maxim MAX34440 Prefixes: 'max34440' Addresses scanned: - Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34440.pdf * Maxim MAX34441 PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller Prefixes: 'max34441' Addresses scanned: - Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34441.pdf Author: Guenter Roeck Description ----------- This driver supports hardware montoring for Maxim MAX34440 PMBus 6-Channel Power-Supply Manager and MAX34441 PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller. The driver is a client driver to the core PMBus driver. Please see Documentation/hwmon/pmbus for details on PMBus client drivers. Usage Notes ----------- This driver does not auto-detect devices. You will have to instantiate the devices explicitly. Please see Documentation/i2c/instantiating-devices for details. Platform data support --------------------- The driver supports standard PMBus driver platform data. Sysfs entries ------------- The following attributes are supported. Limits are read-write; all other attributes are read-only. in[1-6]_label "vout[1-6]". in[1-6]_input Measured voltage. From READ_VOUT register. in[1-6]_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register. in[1-6]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register. in[1-6]_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register. in[1-6]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register. in[1-6]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. in[1-6]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. in[1-6]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status. in[1-6]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status. in[1-6]_highest Historical maximum voltage. in[1-6]_reset_history Write any value to reset history. curr[1-6]_label "iout[1-6]". curr[1-6]_input Measured current. From READ_IOUT register. curr[1-6]_max Maximum current. From IOUT_OC_WARN_LIMIT register. curr[1-6]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register. curr[1-6]_max_alarm Current high alarm. From IOUT_OC_WARNING status. curr[1-6]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. curr[1-6]_highest Historical maximum current. curr[1-6]_reset_history Write any value to reset history. in6 and curr6 attributes only exist for MAX34440. temp[1-8]_input Measured temperatures. From READ_TEMPERATURE_1 register. temp1 is the chip's internal temperature. temp2..temp5 are remote I2C temperature sensors. For MAX34441, temp6 is a remote thermal-diode sensor. For MAX34440, temp6..8 are remote I2C temperature sensors. temp[1-8]_max Maximum temperature. From OT_WARN_LIMIT register. temp[1-8]_crit Critical high temperature. From OT_FAULT_LIMIT register. temp[1-8]_max_alarm Temperature high alarm. temp[1-8]_crit_alarm Temperature critical high alarm. temp[1-8]_highest Historical maximum temperature. temp[1-8]_reset_history Write any value to reset history. temp7 and temp8 attributes only exist for MAX34440.