Re: [PATCH v2 2/2] iio: adc: ti-ads1015: Add support for label

[Andy Shevchenko]

On Thu, Sep 03, 2026 at 06:16:27PM +0300, Flaviu Nistor wrote:
> On Thu, Sep 3, 2026 at 9:18 AM, Andy Shevchenko wrote:

...

> Since the iio core exposes in sysfs the in_volatagex_label
> for all channels, there are 3 situations:

> 3. The channel is not defined in the dts (in_voltagex_label is still visible
> in the sysfs), and reading the label will cause "(null)\n" to be printed in
> the console (as indicated also by Sashiko boot), since the default "" value
> is not assigned during device_for_each_child_node_scoped(). I think this is
> not an issue since is just the way sysfs_emit() handles an NULL string.

Is this current state of affairs?

If so, the patch must not change that — it's an ABI now and (null) is valid
response from the user space point of view.

> What would you prefer? Any further suggestions?

-- 
With Best Regards,
Andy Shevchenko