USB device-mode support (#613)

Platforms/platform-esp32/CMakeLists.txt

@@ -2,11 +2,20 @@ cmake_minimum_required(VERSION 3.20)
 
 file(GLOB_RECURSE SOURCES "source/*.c**")
 
+set(PRIV_REQUIRES_LIST "")
+if ("${IDF_TARGET}" STREQUAL "esp32s3" OR "${IDF_TARGET}" STREQUAL "esp32p4")
+    # esp32_usb_device_controller.cpp / esp32_usb_hid_device.cpp include tinyusb.h - only
+    # available on targets with TinyUSB device-mode support (mirrors Tactility/CMakeLists.txt's
+    # own esp_tinyusb requirement).
+    list(APPEND PRIV_REQUIRES_LIST esp_tinyusb)
+endif ()
+
 idf_component_register(
     SRCS ${SOURCES}
     INCLUDE_DIRS "include/"
     PRIV_INCLUDE_DIRS "private/"
     REQUIRES TactilityKernel driver esp_adc esp_driver_i2c esp_lcd vfs fatfs esp_wifi esp_netif esp_event
+    PRIV_REQUIRES ${PRIV_REQUIRES_LIST}
 )
 
 if (DEFINED ENV{ESP_IDF_VERSION})