On Thu, Feb 06, 2025 at 03:36:05PM +0800, Jeremy Kerr wrote:

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Hi Greg,

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Can do. I have one in the actual driver, but can replicate that
here if it's helpful.

Isn't this a usb.org spec and not a vendor-specific one?

Nope, all defined by the DMTF - so not really a vendor, but external to
the USB-IF at least. The only mention of this under USB-IF is the class
code allocation, along with the note:

   [0x14] This base class is defined for devices that conform to the
   “MCTP over USB” found at the DMTF website as DSP0283. This
   specification defines the usable set of SubClass and Protocol
   values. Values outside of this defined spec are reserved. These
   class codes can only be used in Interface Descriptors.

Ah, ok, then a link to the DSP0283 spec here in the .h file would be
good.

thanks,

greg k-h