[lm-sensors] pwmconfig/fancontrol error (version 3.3.1)

[Charles]

Hello :-)

A lmsensors3.conf generated by pwmconfig resulted in fancontrol message
"Error: file hwmon0/device/fan4_input+hwmon0/device/fan1_input doesn't
exist".

The motherboard was an ASUS P8H67-V fitted with an S-Flex SFF21E case
exhaust fan (3 wire) connected to CHA_FAN2 and a stock Intel Core i3
processor cooler fan (4 wire) connected to CHA_FAN.

pwmconfig detected that the Nuvoton NCT6776F controlled both CHA_FAN and
CHA_FAN2 via pwm1 (pwm2 controls CPU_FAN; pwm3 seems not to be used).
The sensors3.conf generated by pwmconfig included this line:

FCFANS= hwmon0/device/pwm1=hwmon0/device/fan4_input+hwmon0/device/fan1_input

The space after FCFANS= is irregular but did not seem to cause any
problems for fancontrol.

Both hwmon0/device/fan4_input and hwmon0/device/fan1_input do exist:

root at CW8:~# ls -l /sys/devices/platform/w83627ehf.656/fan[14]_input
-r--r--r-- 1 root root 4096 2011-12-03 18:44
/sys/devices/platform/w83627ehf.656/fan1_input
-r--r--r-- 1 root root 4096 2011-12-03 18:26
/sys/devices/platform/w83627ehf.656/fan4_inpu

Further information: the processor cooler fan was connected to CHA_FAN2
instead of CPU_FAN because pwmconfig could not slow it below 1,100 RPM
when it was on CPU_FAN.  Here's the pwmconfig output with the processor
cooler fan connected to CPU_FAN:

    PWM 255 FAN 2284
    PWM 240 FAN 2112
    PWM 225 FAN 2002
    PWM 210 FAN 1939
    PWM 195 FAN 1872
    PWM 180 FAN 1795
    PWM 165 FAN 1730
    PWM 150 FAN 1674
    PWM 135 FAN 1603
    PWM 120 FAN 1523
    PWM 105 FAN 1456
    PWM 90 FAN 1390
    PWM 75 FAN 1317
    PWM 60 FAN 1231
    PWM 45 FAN 1161
    PWM 30 FAN 1105
    PWM 28 FAN 1110
    PWM 26 FAN 1103
    PWM 24 FAN 1102
    PWM 22 FAN 1104
    PWM 20 FAN 1103
    PWM 18 FAN 1104
    PWM 16 FAN 1102
    PWM 14 FAN 1108
    PWM 12 FAN 1110
    PWM 10 FAN 1111
    PWM 8 FAN 1110
    PWM 6 FAN 1110
    PWM 4 FAN 1111
    PWM 2 FAN 1112
    PWM 0 FAN 1112

Best

Charles