Here is a list of all functions with links to the files they belong to:

• __attribute__() : TMC2130Stepper.cpp, TMC2208Stepper.cpp, TMC2240Stepper.cpp
• millis() : bcm2835_stream.h
• print_BIN() : TMCStepper_UTILITY.h
• print_HEX() : TMCStepper_UTILITY.h