OK got it.
If it's not showing up via lsusb, typically we would solve that by rebuilding our open source public facing kernel with some new USB ids (we even give a docker container that is ready to build the kernel) along with instructions on how to safely test the kernel before flashing it. Check it out here: https://docs.modalai.com/voxl2-kernel-build-guide/
I haven't looked around much, but surely if this DJI drone is a development drone, they should also provide such convenience to their developers, so I'd give DJI a shout and see what's up!