On Wed, 23 Jul 2025 15:05:27 +0200 Andrew Lunn wrote:

quoted

quoted

Thanks for checking this.

Just one more question. This is kind of flipping the question on its
head. Does the standard say devices are actually allowed to support
1/2 duplex? Does it say they are not allowed to support 1/2 duplex?

If duplex is not reported, maybe it is because 1/2 duplex is simply
not allowed, so there is no need to report it.
 

No, the standard does not mention anything about duplex at all.  

O.K. So please set duplex to unknown.

.. and update the commit message and the code comment to reflect 
the outcome of the discussion better.
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