Detected i2c-viapro + lm75 chips display *only* CPU temerature

Christian Birchinger joker at
Sat May 25 03:24:23 CEST 2002

I have the following problem with my lm_sensors2 setup.

Summary: Detected i2c-viapro + lm75 chips display *only* CPU

Details and Systeminfo:
I'm using I2C and lm_sensors2 CVS version from 25 May 2002

I have an Asus A7V333/A/R/F Mainboard which shows voltages
fanspeed and CPU temp in the BIOS monitor.

The sensors-detect script tells me to load:
i2c-viapro, pcf8591 and lm75

"dmesg" shows that the "i2c-viapro" finds the device:
i2c-viapro.o: Found Via VT8233A device

lspci reports this as well:
00:11.0 ISA bridge: VIA Technologies, Inc. VT8233A ISA Bridge

Other 2 modules just show:
lm75.o version 2.6.3 (20020322)
pcf8591.o version 2.6.3 (20020322)

The lm75 chip *only* reports the CPU temerature:
~$ sensors
Adapter: SMBus Via Pro adapter at e800
Algorithm: Non-I2C SMBus adapter
Chan. 0:  255
Chan. 1:  255
Chan. 2:  255
Chan. 3:  255
Output:   0 (enabled)

Adapter: SMBus Via Pro adapter at e800
Algorithm: Non-I2C SMBus adapter
temp:      +60.5°C  (limit = +60.0°C, hysteresis = +50.0°C)
(The temp is correct / Don't know if that also means 'bad
values' from the FAQ)

Loaded Modules are:
Module                  Size  Used by    Not tainted
lm75                    3264   0  (unused)
i2c-viapro              3848   0  (unused)
pcf8591                 3488   0  (unused)
i2c-dev                 3968   0
i2c-proc                6400   0  [lm75 pcf8591]
i2c-core               13512   0  [lm75 i2c-viapro pcf8591
i2c-dev i2c-proc]

sensors-detect suggests (and i use this values):
#----cut here----
# I2C adapter drivers
modprobe i2c-viapro
# I2C chip drivers
modprobe pcf8591
modprobe lm75
#----cut here----

#----cut here----
# I2C module options
alias char-major-89 i2c-dev
options pcf8591 ignore=0,0x49
#----cut here----

~$ cat /proc/bus/i2c*
i2c-0   smbus           SMBus Via Pro adapter at e800             Non-I2C SMBus adapter
48      PCF8591 chip                            PCF8591 sensor chip driver
49      LM75 chip                               LM75 sensor chip driver

Additional (failed) attempts:
The FAQ also says that some "lm75" are in fact "W83781D" chips.
I don't get any datas when i load the "W83781D" module.
I could not find a chip with a known name on the mainboard (sorry).
Only found something labled "W83L518D". Don't know if thats
sensor related.
There is only the "temp" output when the lm75 module is loaded
(it also takes 1-2 sec to load the lm75 module which tells me
it really detected something.)

If i can help in any way please send me an email.
Thanks for your help.

Christian Birchinger

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