Add sub-device support to Russound RIO (#146763)

tests/components/russound_rio/const.py

@@ -17,6 +17,5 @@ MOCK_RECONFIGURATION_CONFIG = {
     CONF_PORT: 9622,
 }
 
-DEVICE_NAME = "mca_c5"
 NAME_ZONE_1 = "backyard"
-ENTITY_ID_ZONE_1 = f"{MP_DOMAIN}.{DEVICE_NAME}_{NAME_ZONE_1}"
+ENTITY_ID_ZONE_1 = f"{MP_DOMAIN}.{NAME_ZONE_1}"

tests/components/russound_rio/test_media_player.py

@@ -207,7 +207,7 @@ async def test_invalid_source_service(
 
     with pytest.raises(
         HomeAssistantError,
-        match="Error executing async_select_source on entity media_player.mca_c5_backyard",
+        match="Error executing async_select_source on entity media_player.backyard",
     ):
         await hass.services.async_call(
             MP_DOMAIN,