MAX3421E examples won't compile for esp32

[BlitzCityDIY]

Operating System

Windows 11

Arduino IDE version

1.8.19

Board

Adafruit QT Py ESP32

ArduinoCore version

esp32 3.2.0-RC1

TinyUSB Library version

3.4.3

Sketch as ATTACHED TXT

Arduino_USB_Host_BFF_DeviceInfo.txt

Compiled Log as ATTACHED TXT

output.txt

What happened ?

i came across this issue after an Arduino CI run on the Learn repo: https://github.com/adafruit/Adafruit_Learning_System_Guides/actions/runs/13796988406/job/38591397494#step:7:841

the error is

error: #error "MCUs are only supported with CFG_TUH_MAX3421 enabled"
    395 |   #error "MCUs are only supported with CFG_TUH_MAX3421 enabled"

both examples that failed test against esp32 only.

locally, i recreated the issue. i tried including #define CFG_TUH_MAX3421 1 in the sketch but it still throws the same error. also tried compiling for the qtpy esp32-s3 but got the same error.

when i compile for the feather m4, it does not throw the error so it seems to be espressif only.

How to reproduce ?

the same issue also occurs with the example from the library that the learn sketch is based on (dualrole - simple - device_info_max3421e)

1. open example (dualrole - simple - device_info_max3421e)
2. select adafruit qtpy esp32
3. compile
4. #error "MCUs are only supported with CFG_TUH_MAX3421 enabled occurs

Debug Log

No response

Screenshots

No response

[brentru]

@hathach I am getting the same build issue as @BlitzCityDIY while compiling WipperSnapper for ESP32 on Arduino 3.1.3 and IDF 5.3.2.250210 .

I am using PlatformIO to compile. the board throwing this issue is esp32dev.

In Adafruit/ci-arduino, the board throwing this issue (according to @BlitzCityDIY 's logs is esp32)

cc @ladyada

Compiling .pio/build/esp32dev/libf01/Adafruit TinyUSB Library/arduino/Adafruit_USBD_CDC.cpp.o
In file included from .pio/libdeps/esp32dev/Adafruit TinyUSB Library/src/tusb_option.h:250,
                 from .pio/libdeps/esp32dev/Adafruit TinyUSB Library/src/arduino/Adafruit_TinyUSB_API.cpp:25:
.pio/libdeps/esp32dev/Adafruit TinyUSB Library/src/common/tusb_mcu.h:395:4: error: #error "MCUs are only supported with CFG_TUH_MAX3421 enabled"
  395 |   #error "MCUs are only supported with CFG_TUH_MAX3421 enabled"
      |    ^~~~~
In file included from .pio/libdeps/esp32dev/Adafruit TinyUSB Library/src/tusb_option.h:250,
                 from .pio/libdeps/esp32dev/Adafruit TinyUSB Library/src/arduino/Adafruit_USBD_CDC.cpp:25:
.pio/libdeps/esp32dev/Adafruit TinyUSB Library/src/common/tusb_mcu.h:395:4: error: #error "MCUs are only supported with CFG_TUH_MAX3421 enabled"
  395 |   #error "MCUs are only supported with CFG_TUH_MAX3421 enabled"
      |    ^~~~~
*** [.pio/build/esp32dev/libf01/Adafruit TinyUSB Library/arduino/Adafruit_USBD_CDC.cpp.o] Error 1
In file included from .pio/libdeps/esp32dev/Adafruit TinyUSB Library/src/tusb_option.h:245:
.pio/libdeps/esp32dev/Adafruit TinyUSB Library/src/arduino/ports/esp32/tusb_config_esp32.h:122:32: error: 'CONFIG_TINYUSB_MSC_BUFSIZE' was not declared in this scope
  122 | #define CFG_TUD_MSC_EP_BUFSIZE CONFIG_TINYUSB_MSC_BUFSIZE
      |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~
.pio/libdeps/esp32dev/Adafruit TinyUSB Library/src/arduino/../class/msc/msc_device.h:51:18: note: in expansion of macro 'CFG_TUD_MSC_EP_BUFSIZE'
   51 | TU_VERIFY_STATIC(CFG_TUD_MSC_EP_BUFSIZE < UINT16_MAX, "Size is not correct");
      |                  ^~~~~~~~~~~~~~~~~~~~~~
*** [.pio/build/esp32dev/libf01/Adafruit TinyUSB Library/arduino/Adafruit_TinyUSB_API.cpp.o] Error 1

[brentru]

I also tried downgrading to adafruit/Adafruit TinyUSB Library@^3.4.0 and received the same error.

[hathach]

#510 may help to fix this. It seems to compile fine with currennt arduino-esp32, but seems to have missing atomic lib issue with gcc 14. Which i will try to fix later.

[BlitzCityDIY]

thanks @hathach ! just tested locally and the examples compile now

[hathach]

no problems, I am glad it works for you

[tyeth]

Released just now in 3.4.4