From 7c017f40752b1c3167cbac8e47899c4ae0a224b1 Mon Sep 17 00:00:00 2001 From: "J. Nick Koston" Date: Sat, 31 Jan 2026 00:52:54 -0600 Subject: [PATCH 1/2] [esp32] Exclude additional unused IDF components (driver, dac, mcpwm, openthread, ulp) --- esphome/components/esp32/__init__.py | 5 +++++ esphome/components/esp32_dac/output.py | 8 +++++++- esphome/components/openthread/__init__.py | 4 ++++ 3 files changed, 16 insertions(+), 1 deletion(-) diff --git a/esphome/components/esp32/__init__.py b/esphome/components/esp32/__init__.py index a3154f9933..b03f84de42 100644 --- a/esphome/components/esp32/__init__.py +++ b/esphome/components/esp32/__init__.py @@ -124,8 +124,11 @@ COMPILER_OPTIMIZATIONS = { # - "sdmmc": driver -> esp_driver_sdmmc -> sdmmc dependency chain DEFAULT_EXCLUDED_IDF_COMPONENTS = ( "cmock", # Unit testing mock framework - ESPHome doesn't use IDF's testing + "driver", # Legacy driver shim - pulls in ALL esp_driver_* components "esp_adc", # ADC driver - only needed by adc component + "esp_driver_dac", # DAC driver - only needed by esp32_dac component "esp_driver_i2s", # I2S driver - only needed by i2s_audio component + "esp_driver_mcpwm", # MCPWM driver - ESPHome doesn't use motor control PWM "esp_driver_rmt", # RMT driver - only needed by remote_transmitter/receiver, neopixelbus "esp_driver_touch_sens", # Touch sensor driver - only needed by esp32_touch "esp_eth", # Ethernet driver - only needed by ethernet component @@ -138,9 +141,11 @@ DEFAULT_EXCLUDED_IDF_COMPONENTS = ( "espcoredump", # Core dump support - ESPHome has its own debug component "fatfs", # FAT filesystem - ESPHome doesn't use filesystem storage "mqtt", # ESP-IDF MQTT library - ESPHome has its own MQTT implementation + "openthread", # Thread protocol - ESPHome doesn't use Thread networking "perfmon", # Xtensa performance monitor - ESPHome has its own debug component "protocomm", # Protocol communication for provisioning - unused by ESPHome "spiffs", # SPIFFS filesystem - ESPHome doesn't use filesystem storage (IDF only) + "ulp", # ULP coprocessor - only needed by deep_sleep with ULP wakeup "unity", # Unit testing framework - ESPHome doesn't use IDF's testing "wear_levelling", # Flash wear levelling for fatfs - unused since fatfs unused "wifi_provisioning", # WiFi provisioning - ESPHome uses its own improv implementation diff --git a/esphome/components/esp32_dac/output.py b/esphome/components/esp32_dac/output.py index daace596d3..7c63d7bd11 100644 --- a/esphome/components/esp32_dac/output.py +++ b/esphome/components/esp32_dac/output.py @@ -1,7 +1,12 @@ from esphome import pins import esphome.codegen as cg from esphome.components import output -from esphome.components.esp32 import VARIANT_ESP32, VARIANT_ESP32S2, get_esp32_variant +from esphome.components.esp32 import ( + VARIANT_ESP32, + VARIANT_ESP32S2, + get_esp32_variant, + include_builtin_idf_component, +) import esphome.config_validation as cv from esphome.const import CONF_ID, CONF_NUMBER, CONF_PIN @@ -38,6 +43,7 @@ CONFIG_SCHEMA = output.FLOAT_OUTPUT_SCHEMA.extend( async def to_code(config): + include_builtin_idf_component("esp_driver_dac") var = cg.new_Pvariable(config[CONF_ID]) await cg.register_component(var, config) await output.register_output(var, config) diff --git a/esphome/components/openthread/__init__.py b/esphome/components/openthread/__init__.py index 26c05a0a86..89d335c574 100644 --- a/esphome/components/openthread/__init__.py +++ b/esphome/components/openthread/__init__.py @@ -4,6 +4,7 @@ from esphome.components.esp32 import ( VARIANT_ESP32C6, VARIANT_ESP32H2, add_idf_sdkconfig_option, + include_builtin_idf_component, only_on_variant, require_vfs_select, ) @@ -172,6 +173,9 @@ FINAL_VALIDATE_SCHEMA = _final_validate async def to_code(config): + # Re-enable openthread IDF component (excluded by default) + include_builtin_idf_component("openthread") + cg.add_define("USE_OPENTHREAD") # OpenThread SRP needs access to mDNS services after setup From 3ebe6a38b12af9562c2e23da953889702e940d85 Mon Sep 17 00:00:00 2001 From: "J. Nick Koston" Date: Sat, 31 Jan 2026 01:31:29 -0600 Subject: [PATCH 2/2] fixes --- esphome/components/esp32/__init__.py | 1 + esphome/components/esp32_can/canbus.py | 5 +++++ esphome/components/esp32_touch/__init__.py | 2 ++ 3 files changed, 8 insertions(+) diff --git a/esphome/components/esp32/__init__.py b/esphome/components/esp32/__init__.py index b03f84de42..89c55857a3 100644 --- a/esphome/components/esp32/__init__.py +++ b/esphome/components/esp32/__init__.py @@ -131,6 +131,7 @@ DEFAULT_EXCLUDED_IDF_COMPONENTS = ( "esp_driver_mcpwm", # MCPWM driver - ESPHome doesn't use motor control PWM "esp_driver_rmt", # RMT driver - only needed by remote_transmitter/receiver, neopixelbus "esp_driver_touch_sens", # Touch sensor driver - only needed by esp32_touch + "esp_driver_twai", # TWAI/CAN driver - only needed by esp32_can component "esp_eth", # Ethernet driver - only needed by ethernet component "esp_hid", # HID host/device support - ESPHome doesn't implement HID functionality "esp_http_client", # HTTP client - only needed by http_request component diff --git a/esphome/components/esp32_can/canbus.py b/esphome/components/esp32_can/canbus.py index 0768b35507..7245ba7513 100644 --- a/esphome/components/esp32_can/canbus.py +++ b/esphome/components/esp32_can/canbus.py @@ -15,6 +15,7 @@ from esphome.components.esp32 import ( VARIANT_ESP32S2, VARIANT_ESP32S3, get_esp32_variant, + include_builtin_idf_component, ) import esphome.config_validation as cv from esphome.const import ( @@ -121,6 +122,10 @@ def get_default_tx_enqueue_timeout(bit_rate): async def to_code(config): + # Legacy driver component provides driver/twai.h header + include_builtin_idf_component("driver") + # Also enable esp_driver_twai for future migration to new API + include_builtin_idf_component("esp_driver_twai") var = cg.new_Pvariable(config[CONF_ID]) await canbus.register_canbus(var, config) diff --git a/esphome/components/esp32_touch/__init__.py b/esphome/components/esp32_touch/__init__.py index 6accb89c35..a02370a343 100644 --- a/esphome/components/esp32_touch/__init__.py +++ b/esphome/components/esp32_touch/__init__.py @@ -269,6 +269,8 @@ CONFIG_SCHEMA = cv.All( async def to_code(config): # Re-enable ESP-IDF's touch sensor driver (excluded by default to save compile time) include_builtin_idf_component("esp_driver_touch_sens") + # Legacy driver component provides driver/touch_sensor.h header + include_builtin_idf_component("driver") touch = cg.new_Pvariable(config[CONF_ID]) await cg.register_component(touch, config)