See here for the device adapter capabilities report
Huawei Switch/Router is our only Huawei adapter and it's only been certified with H3C S5120-24PEI:Comware 5.20
First I recommend that you look in the BNA Ideas page of the Communities. If there is not an Idea to get the comware 7 supported then submit the idea. If there is an idea vote it up.
Second: If this adapter doesn't work out of the box it may be possible to modify the adapter to function with the comware 7. This all depends on how much was changed between the 2 OS versions. Sometimes the changes are minor (different responses, command syntax), sometimes the changes are so drastic that a new adapter should really be developed.