+ * This parser was initially created for BM520s devices and tested with
+ * BM525s. The Brymen BM820s family of devices uses the same protocol,
+ * with just 0x82 instead of 0x52 in request packets and in the fixed
+ * fields of the responses. Which means that the packet parser can get
+ * shared among the BM520s and BM820s devices, but validity check needs
+ * to be individual, and the "wrong" packet request will end up without
+ * a response. Compared to BM520s the BM820s has dBm (in the protocol)
+ * and NCV (not seen in the protocol) and is non-logging (live only).
+ * BM820s support was tested with BM829s.
+ *