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Fix backward Filament Runout (Presence) Sensor pullup/pulldown #20228

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2 changes: 1 addition & 1 deletion Marlin/src/feature/runout.h
Original file line number Diff line number Diff line change
Expand Up @@ -149,7 +149,7 @@ class FilamentSensorBase {

public:
static inline void setup() {
#define _INIT_RUNOUT_PIN(P,S,U) do{ if (DISABLED(U)) SET_INPUT(P); else if (S) SET_INPUT_PULLDOWN(P); else SET_INPUT_PULLUP(P); }while(0)
#define _INIT_RUNOUT_PIN(P,S,U) do{ if (DISABLED(U)) SET_INPUT(P); else if (S) SET_INPUT_PULLUP(P); else SET_INPUT_PULLDOWN(P); }while(0)
#define INIT_RUNOUT_PIN(N) _INIT_RUNOUT_PIN(FIL_RUNOUT##N##_PIN, FIL_RUNOUT##N##_STATE, FIL_RUNOUT##N##_PULL)
#if NUM_RUNOUT_SENSORS >= 1
INIT_RUNOUT_PIN(1);
Expand Down