Re: smb driver for Nvidia ION (intel ATOM) chipset writes:
It's easy to get confused by the state of hardware monitoring on not
only FreeBSD but other OSes as well; they all make it sound like
monitoring things "just magically works with SMBus", and that isn't the
This is what I was thinking so far - yeah exactly ;)
I'v now went deeper into mbmon's source and found that stuff out sorta...
Looks like I've to do some more research what really is on my board first.
Using the ISA-IO access method mbmon thinks I've a LM78 and mbmon even
works but I'm getting false numbers for probably just everything...
r...@nudel xmbmon205> mbmon
Temp.= 185.0, 0.0, 0.0; Rot.= 835, 30681, 18750
Vcore = 1.10, 1.81; Volt. = 3.39, 4.95, 8.21, -7.51, -3.24
^C
r...@nudel xmbmon205> mbmon -d
SMBus[NVidia nForce2] found, but No HWM available on it!!
Using ISA-IO access method!!
* Nat.Semi.Con. Chip LM78 found.
r...@nudel xmbmon205>
When working with mbmon -S it comes to the conclusion that I have a lm75
(or maybe it thinks just that because it is the last of the supported HWM
entries in the HWM_module array) but when probing it in lm75_probe it
fails...
i = set_smb_Extemp(LM75_ADDR_START, LM75_ADDR_END,
&smb_wbtemp1, &smb_wbtemp2);
temp1_flag = i >> 1;
temp2_flag = i & 0x01;
if (temp1_flag && temp2_flag)
return 0;
it returns 0 there and this is what probe_HWMChip does not like (it expects
!= 0).
I'll go and find some information about what HWM chip is tied on that
board...
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