Is there any kind of Radio co-processor (RCP) or Direct test mode (DTM) firmware available for the RTL8722DM? This would be extremely helpful for testing with a R&S CMW270 connectivity tester.

Hi @MarkAnd

What would be the expected features in this RCP/DTM firmware? I am unsure what you are looking for.

The ability to do automated tests with the CMW270 as a host and not use a PC. Designs für Co-Prozessoren  |  OpenThread

DTM is supported. The instructions, firmware and tools required are only available after a NDA.
Please refer to this post on getting a NDA.