[lm-sensors] [PATCH] I2C W83792D driver 1/3

[khali@linux-fr.org (Jean Delvare)]

Hi Rduolf,

On 2005-07-27, Rudolf Marek wrote:
> Uff my bad I did not check this. On the other hand the address can be
> changed to virtually any address via CR48, with condition that two lowest
> bits cant be changed.

I think the two lowest bits can be changed. Their initial value is set at
power-up time depending on two pin levels, just like is the case for
subclients, but I do believe this can be changed afterwards, just like
is the case for subclients too. Not that it really matters...

> Should we go for range 0x20 - 0x2f ?

No. That's what we did for it87, result is that since the driver was
written, only default address 0x2d was seen. I can't think of any
reason why someone would use a different address than the four possible
power-up default ones, especially since this chip has no other interface
IIRC, so the power-up address would have to be used at least once to
change the address at CR48. If the power-up address works to do that,
there is no reason not to use it afterwards as well.

So please stick to 0x2c - 0x2f. If anyone ever needs more, that's
exactly what the probe parameter is for (but I'm quite certain it will
never happen).

Thanks,
--
Jean Delvare