From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Flaviu Nistor <flaviu.nistor@gmail.com>
Cc: Andy Shevchenko <andy@kernel.org>,
Jonathan Cameron <jic23@kernel.org>,
David Lechner <dlechner@baylibre.com>,
Nuno Sa <nuno.sa@analog.com>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Rob Herring <robh@kernel.org>, Conor Dooley <conor+dt@kernel.org>,
Daniel Baluta <daniel.baluta@nxp.com>,
Antoniu Miclaus <antoniu.miclaus@analog.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-iio@vger.kernel.org
Subject: Re: [PATCH v2 2/2] iio: adc: ti-ads1015: Add support for label
Date: Thu, 3 Sep 2026 22:03:55 +0300 [thread overview]
Message-ID: <apnEm92_E1_Axhvz@ashevche-desk.local> (raw)
In-Reply-To: <20260903151627.5011-1-flaviu.nistor@gmail.com>
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
next prev parent reply other threads:[~2026-09-03 19:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-02 17:22 [PATCH v2 1/2] dt-bindings: iio: adc: ti,ads1015: Add label property Flaviu Nistor
2026-09-02 17:22 ` [PATCH v2 2/2] iio: adc: ti-ads1015: Add support for label Flaviu Nistor
2026-09-02 17:40 ` sashiko-bot
2026-09-02 18:37 ` David Lechner
2026-09-03 6:18 ` Andy Shevchenko
2026-09-03 15:16 ` Flaviu Nistor
2026-09-03 15:28 ` David Lechner
2026-09-03 19:03 ` Andy Shevchenko [this message]
2026-09-02 18:31 ` [PATCH v2 1/2] dt-bindings: iio: adc: ti,ads1015: Add label property David Lechner
2026-09-03 15:19 ` Flaviu Nistor
2026-09-03 15:30 ` David Lechner
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