Re: [PATCH -next] iio:ad7797: Use correct attribute_group

[Lars-Peter Clausen]

On 3/4/20 7:35 AM, Ardelean, Alexandru wrote:
> On Mon, 2020-03-02 at 21:32 +0800, YueHaibing wrote:
> > [External]
> >
> > It seems ad7797_attribute_group should be used in ad7797_info,
> > according to commit ("iio:ad7793: Add support for the ad7796 and ad7797").
> While the change looks good at first, I am thinking that this might introduce
> another issue while fixing this one.
>
> It looks like the ad7797_attributes[] array may also require the
> &iio_dev_attr_in_m_in_scale_available.dev_attr.attr attribute as well.
> It looks like the available scales should be printed for AD7997 as well.
>
> That being said, this patch is fine as-is.
> But it would require a patch [before-this-patch] to fix the ad7797_attributes
> array.
>
> Something like this:
>
> static struct attribute *ad7797_attributes[] = {
>          &iio_const_attr_sampling_frequency_available_ad7797.dev_attr.attr,
> +       &iio_dev_attr_in_m_in_scale_available.dev_attr.attr,
>         NULL
> };
>
> I'm hoping I'm right about this one. I sometimes don't notice things too well.
Scale is fixed for the ad7796 and not programmable. Usually we only have 
the scale attribute itself in that case and no scale_available attribute.

- Lars