Migrate EDL21 to use SerialPortSelector (#172220)

homeassistant/components/edl21/config_flow.py

@@ -3,12 +3,13 @@
 import voluptuous as vol
 
 from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
+from homeassistant.helpers.selector import SerialPortSelector
 
 from .const import CONF_SERIAL_PORT, DEFAULT_TITLE, DOMAIN
 
 DATA_SCHEMA = vol.Schema(
     {
-        vol.Required(CONF_SERIAL_PORT): str,
+        vol.Required(CONF_SERIAL_PORT): SerialPortSelector(),
     }
 )
 

homeassistant/components/edl21/strings.json

@@ -6,7 +6,10 @@
     "step": {
       "user": {
         "data": {
-          "serial_port": "[%key:common::config_flow::data::usb_path%]"
+          "serial_port": "[%key:common::config_flow::data::port%]"
+        },
+        "data_description": {
+          "serial_port": "Serial port path to connect to"
         },
         "title": "Add your EDL21 smart meter"
       }