Move the scan printout back to i2c.cpp, headers do not log

esphome/components/i2c/i2c.cpp

@@ -21,6 +21,23 @@ void I2CBus::i2c_scan_() {
   }
 }
 
+void I2CBus::dump_scan_results_() {
+  if (!this->scan_)
+    return;
+  ESP_LOGCONFIG(TAG, "Results from bus scan:");
+  if (this->scan_results_.empty()) {
+    ESP_LOGCONFIG(TAG, "Found no devices");
+    return;
+  }
+  for (const auto &s : this->scan_results_) {
+    if (s.second) {
+      ESP_LOGCONFIG(TAG, "Found device at address 0x%02X", s.first);
+    } else {
+      ESP_LOGE(TAG, "Unknown error at address 0x%02X", s.first);
+    }
+  }
+}
+
 void log_wrong_chip_id(uint8_t id, uint8_t expected) {
   ESP_LOGE(TAG, "Wrong chip ID 0x%02X, expected 0x%02X", id, expected);
 }

esphome/components/i2c/i2c_bus.h

@@ -67,6 +67,8 @@ class I2CBus {
   /// @brief Scans the I2C bus for devices. Devices presence is kept in an array of std::pair
   /// that contains the address and the corresponding bool presence flag.
   void i2c_scan_();
+  /// @brief Logs the scan results at config level, if the bus was scanned
+  void dump_scan_results_();
   std::vector<std::pair<uint8_t, bool>> scan_results_;  ///< array containing scan results
   bool scan_{false};                                    ///< Should we scan ? Can be set in the yaml
 };

esphome/components/i2c/i2c_bus_arduino.cpp

@@ -85,20 +85,7 @@ void ArduinoI2CBus::dump_config() {
       ESP_LOGCONFIG(TAG, "  Recovery: failed, SDA is held low on the bus");
       break;
   }
-  if (this->scan_) {
-    ESP_LOGI(TAG, "Results from bus scan:");
-    if (this->scan_results_.empty()) {
-      ESP_LOGI(TAG, "Found no devices");
-    } else {
-      for (const auto &s : this->scan_results_) {
-        if (s.second) {
-          ESP_LOGI(TAG, "Found device at address 0x%02X", s.first);
-        } else {
-          ESP_LOGE(TAG, "Unknown error at address 0x%02X", s.first);
-        }
-      }
-    }
-  }
+  this->dump_scan_results_();
 }
 
 ErrorCode ArduinoI2CBus::write_readv(uint8_t address, const uint8_t *write_buffer, size_t write_count,

esphome/components/i2c/i2c_bus_esp_idf.cpp

@@ -127,20 +127,7 @@ void IDFI2CBus::dump_config() {
       ESP_LOGCONFIG(TAG, "  Recovery: failed, SDA is held low on the bus");
       break;
   }
-  if (this->scan_) {
-    ESP_LOGCONFIG(TAG, "Results from bus scan:");
-    if (this->scan_results_.empty()) {
-      ESP_LOGCONFIG(TAG, "Found no devices");
-    } else {
-      for (const auto &s : this->scan_results_) {
-        if (s.second) {
-          ESP_LOGCONFIG(TAG, "Found device at address 0x%02X", s.first);
-        } else {
-          ESP_LOGE(TAG, "Unknown error at address 0x%02X", s.first);
-        }
-      }
-    }
-  }
+  this->dump_scan_results_();
 }
 
 ErrorCode IDFI2CBus::write_readv(uint8_t address, const uint8_t *write_buffer, size_t write_count, uint8_t *read_buffer,

esphome/components/i2c/i2c_bus_host.cpp

@@ -62,14 +62,7 @@ void HostI2CBus::dump_config() {
     ESP_LOGE(TAG, "  Setup Error: %s", this->first_error_.c_str());
   }
 
-  if (this->scan_) {
-    ESP_LOGI(TAG, "  Scan Results:");
-    for (const auto &s : this->scan_results_) {
-      if (s.second) {
-        ESP_LOGI(TAG, "    0x%02X: Found", s.first);
-      }
-    }
-  }
+  this->dump_scan_results_();
 }
 
 ErrorCode HostI2CBus::write_readv(uint8_t address, const uint8_t *write_buffer, size_t write_count,

esphome/components/i2c/i2c_bus_software.cpp

@@ -51,20 +51,7 @@ void SoftwareI2CBus::dump_config() {
   if (this->recovered_) {
     ESP_LOGCONFIG(TAG, "  Recovery: bus successfully recovered");
   }
-  if (this->scan_) {
-    ESP_LOGI(TAG, "Results from bus scan:");
-    if (this->scan_results_.empty()) {
-      ESP_LOGI(TAG, "Found no devices");
-    } else {
-      for (const auto &s : this->scan_results_) {
-        if (s.second) {
-          ESP_LOGI(TAG, "Found device at address 0x%02X", s.first);
-        } else {
-          ESP_LOGE(TAG, "Unknown error at address 0x%02X", s.first);
-        }
-      }
-    }
-  }
+  this->dump_scan_results_();
 }
 
 // Half of one clock period in microseconds, rounded up. The frequency is validated to be non-zero.

esphome/components/i2c/i2c_bus_zephyr.cpp

@@ -60,20 +60,7 @@ void ZephyrI2CBus::dump_config() {
   } else {
     ESP_LOGCONFIG(TAG, "  Recovery: bus successfully recovered");
   }
-  if (this->scan_) {
-    ESP_LOGI(TAG, "Results from I2C bus scan:");
-    if (scan_results_.empty()) {
-      ESP_LOGI(TAG, "Found no I2C devices!");
-    } else {
-      for (const auto &s : scan_results_) {
-        if (s.second) {
-          ESP_LOGI(TAG, "Found I2C device at address 0x%02X", s.first);
-        } else {
-          ESP_LOGE(TAG, "Unknown error at address 0x%02X", s.first);
-        }
-      }
-    }
-  }
+  this->dump_scan_results_();
 }
 
 ErrorCode ZephyrI2CBus::write_readv(uint8_t address, const uint8_t *write_buffer, size_t write_count,