[lm-sensors] HWMON: S3C24XX series ADC driver
khali at linux-fr.org
Thu May 28 13:47:35 CEST 2009
On Thu, 28 May 2009 12:22:41 +0100, Ben Dooks wrote:
> Jean Delvare wrote:
> > On Tue, 26 May 2009 09:07:01 +0100, Ben Dooks wrote:
> >> + int val;
> > This is an horribly vague struct member name, and undocumented at that.
> Added documentation and renamed to ret_val.
> * @ret_val: Value returned from current conversion to return to caller.
This seems artificially complex. You need to wait for the conversion to
complete anyway, so why bother with an asynchronous mechanism?
> >> +static struct s3c_hwmon *done_adc;
> > What is this?
> The core adc driver doesn't keep any private data, so we need
> this to get back to our state when the conversion ends.
This will break if you have two "s3c-hwmon" devices on the same system.
Why don't you just fix the core adc driver?
> >> + ret *= cfg->mult;
> >> + ret /= cfg->div;
> > Division lacks rounding.
> Which rounding should be used?
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