10 Addresses: I2C 0x2d, 0x2e
12 Datasheet: Publicly available at Nuvoton website
14 http://www.nuvoton.com/
16 Author: Vadim V. Vlasov <vvlasov@dev.rtsoft.ru>
22 The NCT7904D is a hardware monitor supporting up to 20 voltage sensors,
23 internal temperature sensor, Intel PECI and AMD SB-TSI CPU temperature
24 interface, up to 12 fan tachometer inputs, up to 4 fan control channels
31 Currently, the driver supports only the following features:
33 ======================= =======================================================
34 in[1-20]_input Input voltage measurements (mV)
36 fan[1-12]_input Fan tachometer measurements (rpm)
38 temp1_input Local temperature (1/1000 degree,
39 0.125 degree resolution)
41 temp[2-9]_input CPU temperatures (1/1000 degree,
42 0.125 degree resolution)
44 pwm[1-4]_enable R/W, 1/2 for manual or SmartFan mode
45 Setting SmartFan mode is supported only if it has been
46 previously configured by BIOS (or configuration EEPROM)
48 pwm[1-4] R/O in SmartFan mode, R/W in manual control mode
49 ======================= =======================================================
51 The driver checks sensor control registers and does not export the sensors
52 that are not enabled. Anyway, a sensor that is enabled may actually be not
53 connected and thus provide zero readings.
59 The following features are not supported in current version:
64 - external temperature sensors