Next
Previous
Contents
Get the lm_sensors 2.6.2 or more recent:
http://www.lm-sensors.nu/archive/lm_sensors-2.6.2.tar.gz
You'll need kernel sources too in order to compile that one.
tar -xzvf i2c-2.6.2.tar.gz
cd i2c-2.6.2
make && make install
Then there was a problem when making install for me, so if it doesn't work, just
do the following:
cp kernel/i2c-core.o /lib/modules/`uname -r`/misc/i2c-core.o
cp kernel/i2c-proc.o /lib/modules/`uname -r`/misc/i2c-proc.o
Now let's copy the specific driver:
cp kernel/chips/it87.o /lib/modules/`uname -r`/misc/it87.o
ok now
cp prog/sensors/sensors /usr/bin/sensors
--------------------------------------------------------------------
Edit /etc/modules.conf and add to it the following lines:
alias char-major-89 i2c-dev
options it87 temp_type=0x31
now:
modprobe i2c-proc
modprobe it87
modprobe i2c-isa
sensors
should output you some data
When it works, you can write it to a file, that will be loaded automatically on
boot. Under
SuSE the file is:
/etc/init.d/boot.local (used to be /sbin/init.d/)
and you should just add: sensors -s
Under mandrake, the install should have created that file:
/etc/init.d/sensors, which you can edit freely, sensord being just a
daemon to watch over temperature and fan speed, I assume no one
will need something like that for her/his own machine.
Now as root you should edit your /etc/sensors.conf
search for that line: chip "it87-*"
and below you should be able to modify everything to get the right data, here is
a copy of what i have in there:
(please note that temp1 is trash and only temp2 and temp3 should be kept)
--------------------------------------------------------------------
chip "it87-*"
# The values below have been tested on Asus CUSI, CUM motherboards.
# Voltage monitors as advised in the It8705 data sheet
label in0 "VCore"
label in1 "Vcc2.5v"
label in2 "Vcc5v"
label in3 "+5V"
label in4 "+12V"
label in5 "-12V"
label in6 "-5V"
label in7 "SB 5V"
label in8 "V battery"
set in0_min 1.7 * 0.95
set in0_max 1.7 * 1.05
set in1_min 2.4
set in1_max 2.6
set in2_min 3.3 * 0.95
set in2_max 3.3 * 1.05
set in3_min 5.0 * 0.95
set in3_max 5.0 * 1.05
set in4_min 12 * 0.95
set in4_max 12 * 1.05
set in5_min -12 * 0.95
set in5_max -12 * 1.05
set in6_min -5 * 0.95
set in6_max -5 * 1.05
set in7_min 5 * 0.95
set in7_max 5 * 1.05
# vid not monitored by IT8705F
ignore vid
# For this family of chips the negative voltage equation is different from
# the lm78. The chip uses two external resistor for scaling but one is
# tied to a positive reference voltage. See ITE8705/12 datasheet (SIS950
# data sheet is wrong)
# Vs = (1 + Rin/Rf) * Vin - (Rin/Rf) * Vref.
# Vref = 4.096 volts, Vin is voltage measured, Vs is actual voltage.
# compute in2 (1 + 1)*@ , @/(1 + 1)
compute in3 ((6.8/10)+1)*@ , @/((6.8/10)+1)
compute in4 ((30/10) +1)*@ , @/((30/10) +1)
# The next two are negative voltages (-12 and -5).
# The following formulas must be used. Unfortunately the datasheet
# does not give recommendations for Rin, Rf, but we can back into
# them based on a nominal +2V input to the chip, together with a 4.096V Vref.
# Formula:
# actual V = (Vmeasured * (1 + Rin/Rf)) - (Vref * (Rin/Rf))
# For -12V input use Rin/Rf = 6.68
# For -5V input use Rin/Rf = 3.33
# Then you can convert the forumula to a standard form like:
compute in5 -(36/10)*@, -@/(36/10)
#(7.67 * @) - 27.36 , (@ + 27.36) / 7.67
compute in6 -(56/10)*@, -@/(56/10)
#(4.33 * @) - 13.64 , (@ + 13.64) / 4.33
compute in7 ((6.8/10)+1)*@ , @/((6.8/10)+1)
# Temperature
label temp3 "Processor"
set temp3_over 40
set temp3_hyst 20
label temp2 "Mainboard"
set temp2_over 45
set temp2_hyst 25
ignore temp1
# Fans
label fan1"Processor's Fan"
set fan1_min 2000
ignore fan3
ignore fan2
Next
Previous
Contents
Linux HOWTO full list
