sensor_hx71x: Update Sensors to report to load_cell_probe

Signed-off-by: Gareth Farrington <gareth@waves.ky>

klippy/extras/hx71x.py

@@ -53,6 +53,7 @@ class HX71xBase:
             self._finish_measurements, UPDATE_INTERVAL)
         # Command Configuration
         self.query_hx71x_cmd = None
+        self.attach_probe_cmd = None
         mcu.add_config_cmd(
             "config_hx71x oid=%d gain_channel=%d dout_pin=%s sclk_pin=%s"
             % (self.oid, self.gain_channel, self.dout_pin, self.sclk_pin))
@@ -64,10 +65,13 @@ class HX71xBase:
     def _build_config(self):
         self.query_hx71x_cmd = self.mcu.lookup_command(
             "query_hx71x oid=%c rest_ticks=%u")
+        self.attach_probe_cmd = self.mcu.lookup_command(
+            "hx71x_attach_load_cell_probe oid=%c load_cell_probe_oid=%c")
         self.ffreader.setup_query_command("query_hx71x_status oid=%c",
                                           oid=self.oid,
                                           cq=self.mcu.alloc_command_queue())
 
+
     def get_mcu(self):
         return self.mcu
 
@@ -83,6 +87,9 @@ class HX71xBase:
     def add_client(self, callback):
         self.batch_bulk.add_client(callback)
 
+    def attach_load_cell_probe(self, load_cell_probe_oid):
+        self.attach_probe_cmd.send([self.oid, load_cell_probe_oid])
+
     # Measurement decoding
     def _convert_samples(self, samples):
         adc_factor = 1. / (1 << 23)