On 04/12/2011 01:26 PM, Jean Delvare wrote:
Hi all,
Note that you will need a recent enough kernel (>= 2.6.36) to have
support for SMBus multiplexing.
currently I use OpenSUSE11.4 with 2.6.37.1-1.2-default
FWIW, address 0x70 is used by the PCA954x multiplexers, so maybe this
is what you have (and a driver is available).
At 0x2f is probably a W83793 or W83795 monitoring chip, supported by
the w83793 and w83795 drivers, respectively. Only use these dedicated
drivers if you do not intend to use the IPMI features of the board.
18,1a,1c: jc42 temperature sensors
50,52,54: eeproms
Now I loaded the module
test24:/media/i2c-tools/tools # lsmod |grep pca
pca954x 3288 0
i2c_mux 2672 1 pca954x
test24:/media/i2c-tools/tools # ll /sys/bus/i2c/devices/
total 0
lrwxrwxrwx 1 root root 0 Apr 12 14:26 0-0050 ->
../../../devices/pci0000:00/0000:00:1f.3/i2c-0/0-0050
lrwxrwxrwx 1 root root 0 Apr 12 14:26 0-0052 ->
../../../devices/pci0000:00/0000:00:1f.3/i2c-0/0-0052
lrwxrwxrwx 1 root root 0 Apr 12 14:26 0-0054 ->
../../../devices/pci0000:00/0000:00:1f.3/i2c-0/0-0054
lrwxrwxrwx 1 root root 0 Apr 12 13:54 i2c-0 ->
../../../devices/pci0000:00/0000:00:1f.3/i2c-0
Seems like this is what I need to know, but I don't know how to
interpret it. Is it multiplexed on the GPIO Pin 52 and 53 at the W83795ADG?
ftp://ftp.supermicro.com/utility/SuperoDoctorINI/AllMEMDIMM.ini
Regards,
Michael!
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