[lm-sensors] dme1737 very slow read...
juergh at gmail.com
Thu Jul 26 07:39:40 CEST 2007
> > Hi Eric,
> >> I was very happy to see dme1737 support added, thank you! Now I can get
> >> all the info out of my compaq sr1710nx cheapo server. :)
> > Glad you like it :-) I can finally tell my wife that the time I spent
> > on the driver wasn't all wasted...
> I'm impressed; I tried to dislodge a data sheet for this chip from SMSC,
> with no luck. They don't want us to know our cpu temps it seems! ;-)
I only got it because the company I work for is under NDA with SMSC
even though I told them repeatedly that this is strictly for personal
> >> 1.53 seconds to read "0\n" ! :)
> >> Any idea if this is a hardware or software delay? I haven't yet dug
> >> into profiling the kernel code to see what might be taking so long...
> > It's simple: We have to read a lot of registers which we can only get
> > to via I2C which is veeerrrrryyyyy sloooooowwwwww.
> Ok, I thought it might be along those lines. Is there any other
> performance impact to the system while it's waiting for the I2C bus?
Good question, I don't know. That's more a question for the I2C
mailing list. Jean?
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