giving time for the device to be discovered after burning fw

Author: remibettan

unit-tests/test-fw-update.py

@@ -242,6 +242,20 @@ def find_image_or_exit( product_name, fw_version_regex = r'(\d+\.){3}(\d+)' ):
 time.sleep(3) # MIPI devices do not re-enumerate so we need to give them some time to restart
 devices.query( monitor_changes = False )
 sn_list = devices.all()
+sn_list_size = len(sn_list)
+if sn_list_size == 0:
+    retries = 10
+    while retries > 0 and sn_list_size == 0:
+        retries -= 1
+        time.sleep(3)
+        devices.query( monitor_changes = False )
+        sn_list = devices.all()
+        sn_list_size = len(sn_list)
+        if sn_list_size == 0:
+            print("Device discovery... Device not found yet - remaining retries: " + repr(retries) )
+        else:
+            print("Device discovery... Device found.")
+
 device = devices.get_first( sn_list ).handle
 current_fw_version = rsutils.version( device.get_info( rs.camera_info.firmware_version ))
 test.check_equal(current_fw_version, bundled_fw_version if not custom_fw_d400_path else custom_fw_d400_version)