+ /*
+ * The dev->board_ptr will be set by comedi_device_attach() if the
+ * board name provided by the user matches a board->name in this
+ * driver. If so, this function sanity checks the id_bits to verify
+ * that the board is correct.
+ *
+ * If the dev->board_ptr is not set, the user is trying to attach
+ * an unspecified board to this driver. In this case the id_bits
+ * are used to 'probe' for the correct dev->board_ptr.
+ */