Re: [PATCH v3] hwmon: (lm90) Add support for update_interval sysfs attribute

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Hi Jean,

On Thu, Oct 07, 2010 at 05:28:03AM -0400, Jean Delvare wrote:

[ ... ]

> This is smart :) I like it a lot. Just not sure why you limited the
> shift to 2 bits, shifting by say 6 bits would guarantee that future
> devices supporting greater values for the conversion rate register
> (up tp 13) would be supported out of the box.
> 
I ran test code for all supported values, and found that shift by 2 
was sufficient. It can always be changed if someone ever comes up with
a sensor supporting even higher resolution. Call me minimalist ...

> Also note that you may want to use DIV_ROUND_CLOSEST() to make the code
> slightly easier to read.
> 
Yes, that would be cleaner for the final interval calculation.
Want me to change it and send out another revision ?

> But anyway, your code works just fine for the devices currently
> supported, so I can apply the patch as is. I tested the resulting
> driver on my ADM1032 evaluation board and everything went fine. Thanks
> for your contribution!
> 
Thanks a lot for reviewing it!

Guenter

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