[lm-sensors] Re: I2C block reads with i2c-viapro: testers wanted

Jean Delvare khali at linux-fr.org
Thu Aug 11 19:12:23 CEST 2005

Hi Martin,

> > But I don't know where the VT8231, VT8233 and VT8233A should be
> > inserted in this list. If anyone can tell me...
> I guess it's just the way it seems:
> VT82C596
> VT82C596B
> VT82C686A
> VT82C686B
> VT8231
> VT8233
> VT8233A
> VT8235
> VT8237

I'd agree for VT8233 and VT8233A according to some searches I did this
morning. However, the VT8231 doesn't seem to fit in the list. Here are
the facts I am aware of that led me to this conclusion:

* It seems to appear only on specific boards, such as the Epia ones, and
is rarely mentioned on common hardware sites, compared to all the other

* It was presented by VIA at the Cebit in march 2002, which corresponds
to the release of the VT8233A.

* The support was added to the i2c-viapro driver in May 2002, that is,
after VT8233 (October 2001) and VT8233A (March 2002.)

* Its PCI ID is completely different (0x8231, while all other supported
devices are in the 0x3000-0x31FF range.)

So I think it doesn't exactly fit in the release timeline, and is more
likely a custom product derived from the VT82C686 (A or B) rather than a
linear evolution.

For this reason, I won't extrapolate the results to the VT8231. I will
only enable I2C block support for it if someone with such a chip agrees
to test the support first.

Jean Delvare

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