assertEquals((byte) 0x00, next.maxSetupCount, "Max setup count must be 0");

        // Information level defaults to BOTH_DIRECTORY_INFO (0x104) — check via parameters encoding
        byte[] buf = new byte[2 + 2 + 2 + 4 + 2 + filename.length() + 1];
        int n = next.writeParametersWireFormat(buf, 0);