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1Kernel driver max66392=====================3 4Supported chips:5 6 * Maxim MAX66397 8 Prefix: 'max6639'9 10 Addresses scanned: I2C 0x2c, 0x2e, 0x2f11 12 Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX6639-MAX6639F.pdf13 14Authors:15 - He Changqing <hechangqing@semptian.com>16 - Roland Stigge <stigge@antcom.de>17 18Description19-----------20 21This driver implements support for the Maxim MAX6639. This chip is a 2-channel22temperature monitor with dual PWM fan speed controller. It can monitor its own23temperature and one external diode-connected transistor or two external24diode-connected transistors.25 26The following device attributes are implemented via sysfs:27 28====================== ==== ===================================================29Attribute R/W Contents30====================== ==== ===================================================31temp1_input R Temperature channel 1 input (0..150 C)32temp2_input R Temperature channel 2 input (0..150 C)33temp1_fault R Temperature channel 1 diode fault34temp2_fault R Temperature channel 2 diode fault35temp1_max RW Set THERM temperature for input 136 (in C, see datasheet)37temp2_max RW Set THERM temperature for input 238temp1_crit RW Set ALERT temperature for input 139temp2_crit RW Set ALERT temperature for input 240temp1_emergency RW Set OT temperature for input 141 (in C, see datasheet)42temp2_emergency RW Set OT temperature for input 243pwm1 RW Fan 1 target duty cycle (0..255)44pwm2 RW Fan 2 target duty cycle (0..255)45fan1_input R TACH1 fan tachometer input (in RPM)46fan2_input R TACH2 fan tachometer input (in RPM)47fan1_fault R Fan 1 fault48fan2_fault R Fan 2 fault49temp1_max_alarm R Alarm on THERM temperature on channel 150temp2_max_alarm R Alarm on THERM temperature on channel 251temp1_crit_alarm R Alarm on ALERT temperature on channel 152temp2_crit_alarm R Alarm on ALERT temperature on channel 253temp1_emergency_alarm R Alarm on OT temperature on channel 154temp2_emergency_alarm R Alarm on OT temperature on channel 255====================== ==== ===================================================56