Customisations; Error Codes Reference - Espressif ESP32-S2 Programming Manual

Chapter 2. API Reference
• CONFIG_USB_DEBUG_LEVEL (CONFIG_TINYUSB_DEBUG_LEVEL)
• CONFIG_USB_DESC_BCDDEVICE (CONFIG_TINYUSB_DESC_BCD_DEVICE)
• CONFIG_USB_DESC_CDC_STRING (CONFIG_TINYUSB_DESC_CDC_STRING)
• CONFIG_USB_DESC_CUSTOM_PID (CONFIG_TINYUSB_DESC_CUSTOM_PID)
• CONFIG_USB_DESC_CUSTOM_VID (CONFIG_TINYUSB_DESC_CUSTOM_VID)
• CONFIG_USB_DESC_HID_STRING (CONFIG_TINYUSB_DESC_HID_STRING)
• CONFIG_USB_DESC_MANUFACTURER_STRING (CONFIG_TINYUSB_DESC_MANUFACTURER_STRING)
• CONFIG_USB_DESC_MSC_STRING (CONFIG_TINYUSB_DESC_MSC_STRING)
• CONFIG_USB_DESC_PRODUCT_STRING (CONFIG_TINYUSB_DESC_PRODUCT_STRING)
• CONFIG_USB_DESC_SERIAL_STRING (CONFIG_TINYUSB_DESC_SERIAL_STRING)
• CONFIG_USB_DESC_USE_DEFAULT_PID (CONFIG_TINYUSB_DESC_USE_DEFAULT_PID)
• CONFIG_USB_DESC_USE_ESPRESSIF_VID (CONFIG_TINYUSB_DESC_USE_ESPRESSIF_VID)
• CONFIG_USB_DO_NOT_CREATE_TASK (CONFIG_TINYUSB_NO_DEFAULT_TASK)
• CONFIG_USB_ENABLED (CONFIG_TINYUSB)
• CONFIG_USB_MSC_BUFSIZE (CONFIG_TINYUSB_MSC_BUFSIZE)
• CONFIG_USB_MSC_ENABLED (CONFIG_TINYUSB_MSC_ENABLED)
• CONFIG_USB_TASK_PRIORITY (CONFIG_TINYUSB_TASK_PRIORITY)
• CONFIG_USE_ONLY_LWIP_SELECT (CONFIG_LWIP_USE_ONLY_LWIP_SELECT)
• CONFIG_WARN_WRITE_STRINGS (CONFIG_COMPILER_WARN_WRITE_STRINGS)

2.8.7 Customisations

Because IDF builds by default with
auto.conf file) its behaviour has been customised. In normal Kconfig, a variable which is set to"no" is undefined.
In IDF's version of Kconfig, this variable is defined in the Makefile but has an empty value.
(Note that ifdef and ifndef can still be used in Makefiles, because they test if a variable is defined and has a
non-empty value.)
When generating header files for C & C++, the behaviour is not customised - so #ifdef can be used to test if a
boolean config item is set or not.

2.9 Error Codes Reference

This section lists various error code constants defined in ESP-IDF.
For general information about error codes in ESP-IDF, see
ESP_FAIL (-1): Generic esp_err_t code indicating failure
ESP_OK (0): esp_err_t value indicating success (no error)
ESP_ERR_NO_MEM (0x101): Out of memory
ESP_ERR_INVALID_ARG
ESP_ERR_INVALID_STATE
ESP_ERR_INVALID_SIZE
ESP_ERR_NOT_FOUND
ESP_ERR_NOT_SUPPORTED
ESP_ERR_TIMEOUT (0x107): Operation timed out
ESP_ERR_INVALID_RESPONSE
ESP_ERR_INVALID_CRC
ESP_ERR_INVALID_VERSION
ESP_ERR_INVALID_MAC
Espressif Systems
Warning On Undefined
(0x102): Invalid argument
(0x103): Invalid state
(0x104): Invalid size
(0x105): Requested resource not found
(0x106): Operation or feature not supported
(0x108): Received response was invalid
(0x109): CRC or checksum was invalid
(0x10a): Version was invalid
(0x10b): MAC address was invalid
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Variables, when the Kconfig tool generates Makefiles (the
Error Handling.
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