USB compilation errors #3224

obdevel · 2025-10-26T06:11:42Z

obdevel
Oct 26, 2025

I want to change the VID:PID on a device because the PC software that uses it prefers to autodetect devices it can manage.

I'm using the latest version of the core and the Pico SDK USB stack. Compiling for board 'Raspberry Pi Pico'.

The USBConfigure example compiles and runs fine, but I'm getting compilation errors in my program when I call methods of the USB object. It compiles fine if I commit those lines out.

Users/xxx/Documents/Arduino/CANUSB_Micro_RP2040_1_0_2/CANUSB_Micro_RP2040_1_0_2.ino: In function 'void setup()':
CANUSB_Micro_RP2040_1_0_2:92:7: error: request for member 'disconnect' in '(USB_Type*)1343291392', which is of pointer type 'USB_Type*' (maybe you meant to use '->' ?)
   92 |   USB.disconnect();
      |       ^~~~~~~~~~
CANUSB_Micro_RP2040_1_0_2:93:7: error: request for member 'setVIDPID' in '(USB_Type*)1343291392', which is of pointer type 'USB_Type*' (maybe you meant to use '->' ?)
   93 |   USB.setVIDPID(CANUSB4_VID, CANUSB4_PID);
      |       ^~~~~~~~~
CANUSB_Micro_RP2040_1_0_2:94:7: error: request for member 'setProduct' in '(USB_Type*)1343291392', which is of pointer type 'USB_Type*' (maybe you meant to use '->' ?)
   94 |   USB.setProduct("CANUSB Micro 2040");
      |       ^~~~~~~~~~
CANUSB_Micro_RP2040_1_0_2:95:7: error: request for member 'connect' in '(USB_Type*)1343291392', which is of pointer type 'USB_Type*' (maybe you meant to use '->' ?)
   95 |   USB.connect();
      |       ^~~~~~~

The relevant part of my program:

#include <USB.h>
...
void setup(void) {

  /// change USB identification parameters

#ifdef USE_CANUSB4_USB_IDS
  USB.disconnect();
  USB.setVIDPID(CANUSB4_VID, CANUSB4_PID);
  USB.setProduct("CANUSB Micro 2040");
  USB.connect();
#endif

  /// initialise serial

  Serial.begin(115200);

Answered by earlephilhower

Oct 26, 2025

It looks like you are including a file in those ...s which has a #define USB (USB_Type*)1343291392 in it. (Never seen pointers as decimal before, that's some unique coding style!)

Try adding a #undef USB before the calls.

View full answer

earlephilhower · 2025-10-26T16:50:40Z

earlephilhower
Oct 26, 2025
Maintainer

It looks like you are including a file in those ...s which has a #define USB (USB_Type*)1343291392 in it. (Never seen pointers as decimal before, that's some unique coding style!)

Try adding a #undef USB before the calls.

2 replies

obdevel Oct 26, 2025
Author

Thanks, #undef USB before #include <USB.h> fixed it.

I'm similarly bemused. Do you know of a tool that can produce a tree of #includes ? I don't think a recursive grep will find it. One of my libraries wraps another C project that #includes a lot of SDK headers. (https://github.com/obdevel/ACAN2040)

earlephilhower Oct 26, 2025
Maintainer

There's probably an easier way to do it., but if you have the g++ command line (from the IDE logs, for example) replace the -c -o XXXX.o with -E to stop at the preprocessor, then use grep/cut/sort to list the included files.

For example, in ESP8266Audio the host tests for WAV output give

earle@amd:~/Arduino/libraries/ESP8266Audio/tests/host$ g++ -E wav.cpp Serial.cpp  ../../src/AudioFileSourceSTDIO.cpp ../../src/AudioOutputSTDIO.cpp ../../src/AudioGeneratorWAV.cpp   ../../src/AudioLogger.cpp -I ../../src/ -I. | grep "^#" | cut -f3 -d" " | sort -u
"./Arduino.h"
"<built-in>"
"<command-line>"
"Serial.cpp"
"../../src/AudioFileSource.h"
"../../src/AudioFileSourceSTDIO.cpp"
"../../src/AudioFileSourceSTDIO.h"
"../../src/AudioGenerator.h"
"../../src/AudioGeneratorWAV.cpp"
"../../src/AudioGeneratorWAV.h"
"../../src/AudioLogger.cpp"
"../../src/AudioLogger.h"
"../../src/AudioOutput.h"
"../../src/AudioOutputSTDIO.cpp"
"../../src/AudioOutputSTDIO.h"
"../../src/AudioStatus.h"
"/usr/include/alloca.h"
"/usr/include/c++/11/bits/std_abs.h"
"/usr/include/c++/11/cstdlib"
"/usr/include/c++/11/pstl/pstl_config.h"
"/usr/include/c++/11/stdlib.h"
"/usr/include/endian.h"
"/usr/include/features.h"
"/usr/include/features-time64.h"
"/usr/include/linux/close_range.h"
"/usr/include/stdc-predef.h"
"/usr/include/stdint.h"
"/usr/include/stdio.h"
"/usr/include/stdlib.h"
"/usr/include/string.h"
"/usr/include/strings.h"
"/usr/include/time.h"
"/usr/include/unistd.h"
"/usr/include/x86_64-linux-gnu/bits/atomic_wide_counter.h"
"/usr/include/x86_64-linux-gnu/bits/byteswap.h"
"/usr/include/x86_64-linux-gnu/bits/confname.h"
"/usr/include/x86_64-linux-gnu/bits/endian.h"
"/usr/include/x86_64-linux-gnu/bits/endianness.h"
"/usr/include/x86_64-linux-gnu/bits/environments.h"
"/usr/include/x86_64-linux-gnu/bits/floatn-common.h"
"/usr/include/x86_64-linux-gnu/bits/floatn.h"
"/usr/include/x86_64-linux-gnu/bits/getopt_core.h"
"/usr/include/x86_64-linux-gnu/bits/getopt_posix.h"
"/usr/include/x86_64-linux-gnu/bits/libc-header-start.h"
"/usr/include/x86_64-linux-gnu/bits/long-double.h"
"/usr/include/x86_64-linux-gnu/bits/posix_opt.h"
"/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h"
"/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h"
"/usr/include/x86_64-linux-gnu/bits/select.h"
"/usr/include/x86_64-linux-gnu/bits/stdint-intn.h"
"/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h"
"/usr/include/x86_64-linux-gnu/bits/stdio_lim.h"
"/usr/include/x86_64-linux-gnu/bits/stdlib-float.h"
"/usr/include/x86_64-linux-gnu/bits/struct_mutex.h"
"/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h"
"/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h"
"/usr/include/x86_64-linux-gnu/bits/time64.h"
"/usr/include/x86_64-linux-gnu/bits/time.h"
"/usr/include/x86_64-linux-gnu/bits/timesize.h"
"/usr/include/x86_64-linux-gnu/bits/timex.h"
"/usr/include/x86_64-linux-gnu/bits/types/clockid_t.h"
"/usr/include/x86_64-linux-gnu/bits/types/clock_t.h"
"/usr/include/x86_64-linux-gnu/bits/types/cookie_io_functions_t.h"
"/usr/include/x86_64-linux-gnu/bits/types/__FILE.h"
"/usr/include/x86_64-linux-gnu/bits/types/FILE.h"
"/usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h"
"/usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h"
"/usr/include/x86_64-linux-gnu/bits/types.h"
"/usr/include/x86_64-linux-gnu/bits/typesizes.h"
"/usr/include/x86_64-linux-gnu/bits/types/__locale_t.h"
"/usr/include/x86_64-linux-gnu/bits/types/locale_t.h"
"/usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h"
"/usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h"
"/usr/include/x86_64-linux-gnu/bits/types/sigset_t.h"
"/usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h"
"/usr/include/x86_64-linux-gnu/bits/types/struct_itimerspec.h"
"/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h"
"/usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h"
"/usr/include/x86_64-linux-gnu/bits/types/struct_tm.h"
"/usr/include/x86_64-linux-gnu/bits/types/timer_t.h"
"/usr/include/x86_64-linux-gnu/bits/types/time_t.h"
"/usr/include/x86_64-linux-gnu/bits/uintn-identity.h"
"/usr/include/x86_64-linux-gnu/bits/unistd_ext.h"
"/usr/include/x86_64-linux-gnu/bits/waitflags.h"
"/usr/include/x86_64-linux-gnu/bits/waitstatus.h"
"/usr/include/x86_64-linux-gnu/bits/wchar.h"
"/usr/include/x86_64-linux-gnu/bits/wordsize.h"
"/usr/include/x86_64-linux-gnu/c++/11/bits/c++config.h"
"/usr/include/x86_64-linux-gnu/c++/11/bits/cpu_defines.h"
"/usr/include/x86_64-linux-gnu/c++/11/bits/os_defines.h"
"/usr/include/x86_64-linux-gnu/gnu/stubs-64.h"
"/usr/include/x86_64-linux-gnu/gnu/stubs.h"
"/usr/include/x86_64-linux-gnu/sys/cdefs.h"
"/usr/include/x86_64-linux-gnu/sys/select.h"
"/usr/include/x86_64-linux-gnu/sys/types.h"
"/usr/lib/gcc/x86_64-linux-gnu/11/include/stdarg.h"
"/usr/lib/gcc/x86_64-linux-gnu/11/include/stddef.h"
"/usr/lib/gcc/x86_64-linux-gnu/11/include/stdint.h"
"wav.cpp"

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USB compilation errors #3224

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obdevel Oct 26, 2025

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