On some environments (c.f. https://github.com/Idein/py-videocore6/issues/48) the order of loading v3d and vc4 modules is sometimes swapped, so the device minor of v3d is not fixed to zero.
This pull request fixes to specify the v3d device by its hardware address.
On some environments (c.f. https://github.com/Idein/py-videocore6/issues/48) the order of loading v3d and vc4 modules is sometimes swapped, so the device minor of v3d is not fixed to zero. This pull request fixes to specify the v3d device by its hardware address.