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