From 16bc1517588c83ba3cf253549c63664ed3eaf9cf Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Mon, 27 Apr 2026 08:01:30 -0500
Subject: [PATCH] [wifi] Log phy_mode in dump_config

---
 esphome/components/wifi/wifi_component.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/esphome/components/wifi/wifi_component.cpp b/esphome/components/wifi/wifi_component.cpp
index f7c70b1147..0f62b038b8 100644
--- a/esphome/components/wifi/wifi_component.cpp
+++ b/esphome/components/wifi/wifi_component.cpp
@@ -309,6 +309,18 @@ bool CompactString::operator==(const StringRef &other) const {
 /// └──────────────────────────────────────────────────────────────────────┘
 
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_INFO
+#ifdef USE_WIFI_PHY_MODE
+// Use if-chain instead of switch to avoid jump table in RODATA (wastes RAM on ESP8266)
+static const LogString *phy_mode_to_log_string(WiFi8266PhyMode mode) {
+  if (mode == WIFI_8266_PHY_MODE_11B)
+    return LOG_STR("11B");
+  if (mode == WIFI_8266_PHY_MODE_11G)
+    return LOG_STR("11G");
+  if (mode == WIFI_8266_PHY_MODE_11N)
+    return LOG_STR("11N");
+  return LOG_STR("Auto");
+}
+#endif
 // Use if-chain instead of switch to avoid jump table in RODATA (wastes RAM on ESP8266)
 static const LogString *retry_phase_to_log_string(WiFiRetryPhase phase) {
   if (phase == WiFiRetryPhase::INITIAL_CONNECT)
@@ -1535,6 +1547,9 @@ void WiFiComponent::dump_config() {
       break;
   }
   ESP_LOGCONFIG(TAG, "  Band Mode: %s", band_mode_s);
+#endif
+#ifdef USE_WIFI_PHY_MODE
+  ESP_LOGCONFIG(TAG, "  PHY Mode: %s", LOG_STR_ARG(phy_mode_to_log_string(this->phy_mode_)));
 #endif
   if (this->is_connected()) {
     this->print_connect_params_();