Re: [PATCH] dt-bindings: iio: Document "label" property

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On 12/21/21 11:43 AM, Paul Cercueil wrote:
All iio devices can have a label, which will be carried on to userspace
as a sysfs attribute. This is useful when having several iio devices
that represent different instances of the same hardware, as the name
attribute would then not be enough to differentiate between them.

Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---
  Documentation/devicetree/bindings/iio/common.yaml | 8 ++++++++
  1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/common.yaml b/Documentation/devicetree/bindings/iio/common.yaml
index f845b41d74c4..a90ad7718ecf 100644
--- a/Documentation/devicetree/bindings/iio/common.yaml
+++ b/Documentation/devicetree/bindings/iio/common.yaml
@@ -32,6 +32,14 @@ properties:
        considered 'near' to the device (an object is near to the
        sensor).
+ label:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: |
+      All iio devices can have a label, which will be carried on to userspace
+      as a sysfs attribute. This is useful when having several iio devices that
+      represent different instances of the same hardware, as the name attribute
+      would then not be enough to differentiate between them.
+

The description has a lot of implementation details of the Linux kernel. The devicetree bindings should be formulated operating system agnostic.

Something like:

A descriptive label that allows to uniquely identify the device within the system.




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