Using Control Surface with Teensy 4.1 board about control-surface

[tttapa]

Hi, these all appear to be warnings, not errors. Does the compilation fail elsewhere?

C:\Users\randy\AppData\Local\Arduino15\packages\teensy\hardware\avr\1.59.0\cores\teensy4/DMAChannel.h:399:25: warning: implicitly-declared 'constexpr DMASetting& DMASetting::operator=(const DMASetting&)' is deprecated [-Wdeprecated-copy]

C:\Users\randy\AppData\Local\Arduino15\packages\teensy\hardware\avr\1.59.0\cores\teensy4/usb_midi.h: In member function 'void usb_midi_class::setHandleSysEx(void (*)(const uint8_t*, uint16_t, bool))':
C:\Users\randy\AppData\Local\Arduino15\packages\teensy\hardware\avr\1.59.0\cores\teensy4/usb_midi.h:347:47: warning: cast between incompatible function types from 'void (*)(const uint8_t*, uint16_t, bool)' {aka 'void (*)(const unsigned char*, short unsigned int, bool)'} to 'void (*)(const uint8_t*, uint16_t, uint8_t)' {aka 'void (*)(const unsigned char*, short unsigned int, unsigned char)'} [-Wcast-function-type]

These are warnings in the Teensy Core, outside of Control Surface. I opened an issue back in 2022, but it has not been addressed: PaulStoffregen/cores#660

c:\Users\randy\Documents\Arduino\libraries\Control_Surface\src/MIDI_Inputs/MCU/VU.hpp: At global scope:
c:\Users\randy\Documents\Arduino\libraries\Control_Surface\src/MIDI_Inputs/MCU/VU.hpp:188:7: warning: 'cs::MCU::VU' has a field 'cs::MCU::VU::decayTimer' whose type uses the anonymous namespace [-Wsubobject-linkage]

This is a valid warning, caused by the fact that millis in an inline function on Teensy, but it should not cause any issues.

[RandyRyanG]

No, is it ok to ignore them? Or turn those warnings off in preferences?

[tttapa]

Yes, you can ignore them.